Unmarked on side of fuze body but bottom is marked 80 VII, W.M. Co, BMC, 547 and 17 which is probably the date of manufacture 1917. Fired, inert, appears to be battlefield pickup so unlikely to fit your 18 pdr or 4.5 inch projo.
Unmarked on side of fuze body but bottom is marked 80 VII, W.M. Co, BMC, 547 and 17 which is probably the date of manufacture 1917. Fired, inert, appears to be battlefield pickup so unlikely to fit your 18 pdr or 4.5 inch projo.