A member of the Philatelic Traders Society. GB George V 1912 SG357a 1d variety Q for O on centre stamp in unmounted mint strip of 3. The item “GB GV SG357a 1d variety Q for O centre stamp in unmounted mint strip of 3 cv£250″ is in sale since Thursday, December 2, 2021. This item is in the category “Stamps\Great Britain\George V”. The seller is “john_noble_stamps” and is located in Leatherhead, Surrey. This item can be shipped worldwide.