King George VI
1940 Centenary of the Penny Black
Cylinder Block of 6
SG479 ½d Green
Specialised: QCom2
Cylinder 3 No dot Perf E/I
Control G40
Unmounted Mint
Actual Scan

Catalogue numbers are taken from the Stanley Gibbons "Great Britain Concise" and "Specialised Four Kings" Catalogues and are used with the kind permission of Stanley Gibbons Ltd