I have a lead fitted with a 3 pin female plug. It is round pin with the top pin larger than the the other 2.
Its fits a russell hobbs coffee percolator ( CP2 ) from the 1970s .
My pot has stopped working and it looks like it can not be repaired. I may sell the lead and put the money towards another pot. These type of plugs are obsolete and can not be purchased anywhere today.
GRAHAM FRANCIS, March 2014