Originally Posted by KJCherokee

"Across the Empire"? I have come across them in Singapore and Malaysia, not sure where else they survive. After all, the Empire was dead and buried before the fused 13A square pin plug came into existence. When I was a lad in the UK we had 2A, 5A, 10A and 15A round pin plugs and sockets - all different sizes, so you had to have a collection of adaptors around the house. The introduction of the 13A plug was a brilliant idea - especially for the electricians who got to rewire every house to put in the new sockets!