It is shock resistant, and built to withstand the roughest and toughest conditions you are likely to encounter anywhere in the world. The francis barker traditional military liquid prismatic compass is currently in service with many defence forces around the world and has been for many years. Compass surveying is a type of surveying in which the directions of surveying lines are determined with a magnetic compass, and. It is simple to operate and has been around for a few hundred years. The mk iii was produced by the famed compass manufacturer francis barker of london during the first half of the 20th century and was used primarily by the british forces during the second world war. We also offer the brass version of this compass, the similar m88 green prismatic pocket compass. The british army prismatic marching compass m73 has become a bit of a classic of its time.
Martin sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy. Made of brass, size 100mm dia fitted with quality agate stone. It is mounted on two brass slides and you set the focus by sliding it up or down with your thumb. The m88 liquid prismatic compass is built to the same exacting standards as the m73, but is made largely from aluminium alloy making it very lightweight.
Beautiful brass and copper nautical key chains from the brass compass. M73 mils black liquid prismatic compass pyser optics. Quick, precise settlement of the liquid filled dial assembly allows rapid use of the compass in field conditions. Its called a prismatic compass because of the for sale is a military prismatic marching compass made by stanley of london. Click on the links to access the generic chapter s dedicated to a cerrtain type of compass 186875. Well, i got given an estate mkiii compass made by the canadian kodak company in 1942 and it was in pretty sorry shape. British made, these are standard issue to uk armed forces and were used in iraq and afghanistan. This m73 brass presentation compass is fully ruggedised and will operate with precision accuracy to within half a degree, in temperatures from 55c 1f down to 30c 22f. This m73 brass presentation compass is built to full military specifications. The sighting aid in the lid above the polished brass mirror is a round hole where it is.
Vintage francis barker m73 military prismatic compass mils aq224uk made, brass, scarce compass in the compasses category was sold for r1,495. Solid reliable brassaluminium and glass construction. Find great deals on ebay for m73 compass and m88 compass. Just got my mkiii compass back from trademark london. I remember getting issued one of the old rib cracker prismatic compasses at rmas in the early 90s. Francis barker m73 brass prismatic military compass for. Francis barker m88 prismatic military compass compass library.
Compass surveying is a type of surveying in which the directions of surveying lines are determined with a magnetic compass, and the length of the surveying lines. This compass is the direct descendant of the legendary mkiii that was in use throughout the second world war. Aug 30, 2007 i remember getting issued one of the old rib cracker prismatic compasses at rmas in the early 90s. Francis barker m73 black liquid prismatic compass degress model key features. Unfollow prismatic compass to stop getting updates on your ebay feed. All listings current page auction buy it now classified ads.
I sent it off to paul crespel at trade mark london for restoration and i think it came back looking pretty good. From simple to technical we have a compass for you. Issue milspec tritium illuminated military lensatic marching compass, the high quality francis barker surveyors and artillery prismatic compass, and the francis barker nato survival. The compass body is constructed mainly from brass and incorporates a bellows expansion system to allow for volumetric changes in the damping fluid contained within the capsule.
The fb 1605 nato survival button compass, also known as the francis barker sas survival button compass, is a tiny brass button compass that is built to full military specifications for survival use. Adarsh international brass, aluminium prismatic compass, for laboratory, size diameter. Aug 21, 2011 the british army prismatic marching compass m73 has become a bit of a classic of its time. Free shipping on three models of the francis barker tritium m73 milspec prismatic pocket compasses from pysersgi. I know this is offtopic but what a waste of space a prismatic is for routine navigational use. The destroyed ammunition caches cannot be used as ied components and eod operators can focus on immediate ied threats rather than on the logistics of transporting and disposal of captured ammunition. It and the later british m73 and m88 prismatic compasses were also marching compasses since they were used by military personnel to navigate from point a to poit d via. Sirs calls their compass the model g150 prismatic marching compass and. I believe they were withdrawn because the luminous markings were too radioactive. Francis barker m73 brass prismatic military compass for sale. However around the outside of the body the cardinal points were marked n w s e.
Ive recently bought a francis barker m88 compass and though ive familiarised with its use id like to get hold of set of instructions for this particular compass. Miniature brass compass 15mm compass, tiny working compass pendant, compass charm, steampunk, nautical, mini compass, jewelry supply save some buy in bulk please read the shipping info below for bulk purchases these adorable brass compasses measure 15mm in diameter and 20mm from. Its not totally period looking any longer though as ckc used a lot of radium far more than francis barker did in the ukmade mkiii. Francis barker tritium black m73 milspec prismatic pocket. Find your own way vintage mkiii marching compass part 2.
I first handled one back in the eighties and was very sad to have to hand it back at end of the exercise. Oct 08, 20 prismatic means that you flip up a small prism and use it to read the bearing on the compass while youre sighting. Buy prismatic compass and get the best deals at the lowest prices on ebay. Brass and aluminium case with lid, liquid filled, calibrated in 12 degrees, and can be tripod mounted.
When navigating through an underground system such as a cave, a prismatic compasswill provide a reliable means of reading direction, helping to prevent the explorer from becoming lost. The prismatic compass is generally smaller in size than a surveyor compass. Three models of the francis barker tritium m73 and m88 mil. Military and outdoor equipment, tents, ponchos, sleeping bags, cookers, torches, navigation, multitools, watercarrying, survival guides, firstaid and safety. It is liquid filled and mainly made of brass, there is a lighter version, the m88 that is alloy but i do not begrudge the reassuring weight in my pocket. Full day or night use with 5 tritium lights, 360 degree compass rose, leather case, precision sapphire bearing, pysersgi, full milspec nsn. Compass collector verners pattern compasses page 1. A very good example of a francis barker m73 prismatic military marching compass. This is due to a lot of brass in their construction, plus theyre fluiddampened.
Francis barker m73 prismatic compass bushcraft usa forums. The prism allows you to simultaneously view the object being sighted and its magnetic heading. By destroying ammunition in situ, insurgent active shooters are denied access to caches of small arms ammunition. May 05, 2012 all original prismatic compass 1940 t. At the centre of the box there is a hard steel pivot which supports the. We also offer the affordable stanley london brass fully functional prismatic surveying compass with tripod, three models of francis barker handheld military prismatic compasses, and a polished brass prismatic compass on a brass desk stand.
The francis barker m73 and the sirs model g150 weigh in at about 7. Now raise the lid so that you can look through the sighting slit and align the hairline on the glass window with the object of your bearing. For example, look at where the lume is inside the lid. Easy basic compass series part 4 declination and compass eagle jon duration. The m73 liquid damped prismatic compass is a robust. Find here online price details of companies selling prismatic compass. It is much lighter than the classic m73, but equal to it in terms of performance. Francis barker m73 black liquid prismatic compass degrees model. The francis barker traditional military liquid prismatic compass is currently in service with many defence. M73 degrees black liquid prismatic compass pyser optics.
The prismatic compass is used to determine the whole circle bearing of the lines. You get a much clearer view of your object in reality than i can. Generally regarded to be one of the finest compasses available. Free shipping on three models of the francis barker tritium m73 milspec. A prismatic compass is a navigation and surveying instrument which is extensively used to find out the bearing of the traversing and included angles between them, waypoints an endpoint of the lcourse and direction. An excellent francis barker m88 military prismatic marching compass, boxed and in mint condition. Surely, as youre in the military, you would be trained to use a prismatic compass. The francis barker traditional military liquid prismatic compass is currently in service with many defense forces around the world, and has been for many years. Prismatic compass at best price in india indiamart. The old prismatic compass certainly in use in the 60s and 70s had the card which floated in the oil filled body marked, degrees version, north east south west. This m73 francis barker tritium liquiddamped prismatic compass is considered by many to be the best handheld military compass in the world.
Questions about francis barker m73 liquid prismatic compass. Still in use by the military today, the m73 has long been recognised as the worlds finest military prismatic compass. Built to meet the exacting specifications demanded by military users, it is the compass that officers of the british army have used for generations. Prismatic compass surveying and whole circle bearing reading. On the earlier compass, its identical to a m19 francis barker marching compass uk mod ww1 item with lume all down the length, while on the 1944 compass there is no lume on the bottom due to their being a screw there to retain the guard cage.
We also offer the brass version of this compass, the similar m88 green prismatic pocket compass, an inexpensive solid brass reproduction of this compass, a u. Francis barker tritium black milspec prismatic pocket compass with leather case. Vintage francis barker m73 military prismatic compass. Francis barker m88 military prismatic compass mils olive. The company came into existence in the year 1987 as a sole proprietorship firm and is involved in manufacturing, supplying and trading a comprehensive range of water current meter.
The prismatic compass has been designed to give accurate magnetic headings. Francis barker prismatic artillery compass compass library. Francis barker surveyors and artillery prismatic compass. Adarsh international brass, aluminium prismatic compass, for laboratory, sizediameter. Find your own way vintage mkiii marching compass part. Can anyone point me in the direction of a pdf file or any other source. Compass, prismatic, mk3 by peter laidler i am a compass maker by trade, and this article, while obviously written in good faith, gives fatally flawed information that will lead people to carry out work on beautiful, precision instruments, that will do such damage as to possibly render the compass beyond economical repair. Eventually i obtained my own and i thought i would write a few words for people that have. See also nautical, pocket, escape, survey and wrist compasses. Milsurps knowledge library compass, prismatic, mk3 by. The prismatic compass, due to its luminescent qualities, makes the device ideal for use in any environment where visibility is somewhat limited.
Similar to the fb1204 model which was in production until the late 1990s. The box is made up of brass or a non metallic material. The best device for finding your way, no batteries, satellites, or recharging required. Since 1848, pyser optics have been manufacturing the finest, highest quality range of liquid prismatic compasses in the world. Free shipping on three models of the francis barker tritium m73 milspec prismatic pocket compasses from the brass compass.
It is liquid filled and mainly made of brass, there is a lighter version, the m88 that is alloy but i do not begrudge the. Vintage francis barker m73 military prismatic compass mils. Current models of handheld prismatic compass are the m73 and m88. A rare and very high quality artillery surveyors prismatic compass, made in britain by francis baker and dating from c. Antique brass 1940s army prismatic marching compass. Provided with an aluminum floating circle graduated to read 30 minutes 0. Great savings free delivery collection on many items. The m73 liquid prismatic compass is a robust, precision instrument of predominantly brass construction, designed to withstand the most arduous climatic conditions. The traditional milspec liquid prismatic compass is currently in service with numerous armies around the world, built to meet the exacting accuracy and high specifications demanded by users worldwide. The mkiii has a flipup prism, so it is a prismatic compass. Click on the links to access the generic chapter s dedicated to a certain type of compass 186875.
Full day or night use with 5 tritium lights, 360 degree compass rose, leather case, precision sapphire bearing, full milspec nsn. The m73 liquid damped prismatic compass is a robust, precision instrument made in the united kingdom for military use. Surely, they are only worth the extra bulk when you have a real need to, eg, steer bombs to within a few dozen mils. It will operate with precision accuracy to within half a degree, in temperatures from 55. In 1895 f barker produced a verner compass nos 327 and j h steward produced both a verner compass, a major verners sergeants compass and a major w verners patent night marching comapss which were all pocket compasses and not prismatic compasses. I wouldnt worry about it too much unless it becomes impossible to read the car through the prism.