Inert British 76mm L23A1 Drill rounds

A pair of British military 76mm L23A1 Drill rounds. Manuafctured by RLB = Royal Laboratories. One is dated 1960 and the other 1976. They were used during training and drill exercises on the L5A1 cannons that were fitted to the British army Alvis Saladin and Scorpion armoured vehicles.