13A three square pin plug made of phenol formaldehyde, by MK Electric, Basildon, Essex, England, 1920-1940. Object is marked at base with BS 1363. 13A three square pin plug made of phenol formaldehyde
Cooker switch-fuse, 30 amp, "Botrade", ironclad with wooden round-pin plug by MK Electric, issued by Preston Corporation Electricity Department, 1920s Cooker switch-fuse