A superb UNMOUNTED MINT " No Control cylinder 19 dot " control block of 6 with perf type 6B E/P. A superb UNMOUNTED MINT No Control cyli B42760" is in sale since Tuesday, April 9, 2019. This item is in the category "Stamps\Great Britain\George VI". The seller is "bbstampsltd" and is located in Basingstoke. This item can be shipped worldwide.