Auction: 20032 - Great Britain Stamps and Postal History - conducted behind closed doors
Lot: 921
Great Britain
King George V
1912-24
4d. slate-green variety watermark inverted in a lower left corner block of six with control "M 18", unmounted mint. A scarce control block. S.G. N23(4)b
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Sold for
£150
Starting price
£85