Special Features
Base is made of phenolic materialconforming to mil-p-15047 or a vinyl copolymer resin; slide is made of phenolic material conformin to mil-p-15047 or a vinyl copolymer resin; all scales, lettering, and diagrams on the facesof the base and slide shalle be printed on china white opaque vinyl copolymer resin and shall be protected by a sheet of transparent, vinyl copolymer resin not lesst than 0.005 inch thick; indicator is made of transparent methylmethacrylate or equal; carry case is of the scabbard type and shall be made of waterproofed natural finish leather, reinforced waterproofed fabric, plastic, or other suitable material