Constructed from a combination of brass and steel components, this belt loading tool is marked with a serial number of "9649", an assembly number of "101", and a brass plate marked "MANUFACTURED BY/COLTS PT F.A. MFG. CO/HARTFORD, CT., U.S.A./PATENTED JAN 13. 1920". Though not marked for a specific cartridge, the length of the feed port (3.08 inches) would be appropriate for the .303 British cartridge (3.075 inch overall length), suggesting use with a Vickers gun or similarly chambered weapon. The cartridge hopper, crank handle and table/bench clamp detach for storage, and all components fit in the included hardwood case.