Silva Military Compasses Silva Military compasses bezels are marked in 6400 div instead of the standard compasses 360 deg. Silva Ranger 3/6400 Medium baseplate compass with magnifier and mm & inch ruler Luminous ideal for Air & military cadets etc. Nato # 6605-66-046-9199 P/No. 336896 Silva Expedition 4/6400 Larger baseplate compass with extra scales. Magnifier mm & inch scales 1:63.360 1:50000 1:25000 scales Illumination: Zinc sulphide. P/No. 356921515 Silva Expedition 54/6400B Official Aust Army Compass. This is a baseplate prismatic sighting compass. Sighting card in 6400 and 360 deg div. Outer bezel in 6400 (mills) Illumination: Tritium (glows all night.) Nato#6605-66-110-8985 P/No. 35861 Silva Expedition 54/6400L This is a baseplate prismatic sighting compass. Sighting card in 6400 and 360 deg div. Outer bezel in 6400 (mills) Illumination: Zinc Sulphide (limited glow time few hours) P/No. 358529015 Accessories available for 54 seriesP/No 35799 Plastic protective coverP/No 55077 Olive green Soft pouch with belt straps. Previous Next