2A sockets were common too, for anyone that doesnt know. There were 3
pin 15A, 5A and 2A, and the even older 2 pin 5A non-polarised plugs
/sockets. All these were used together on the same install.

In practice, the round pin system was a mess. With the penultimate one
I used, the appliances had whatever size plug would fit in the nearest
socket, regardless of ampacity, and home made adaptors consisting of 5A
plugs to 15A sockets were aplenty, as were christmas trees of adaptors.

The last one I used was all wired in 2 core wire, no earth at all.


NT