VICKERS MG ACCESSORIES AND EQUIPMENT
Belt plugs:
Belt plug
Cat No. C1/BD 2500, PLUGS, BELT, M.G., MK. 1 - With wood handle; for belts of Vickers .303-in. M.G.
This plug is provided for opening out the pockets of .303-in. belts when they become tight.
Sources:
War Office, 1940a; 1944c; 1949a
Specific source references can be provided if required.