The product is a Machin Booklet Pane UB38 FCP PVA pane,issued in 1971 during the reign of Queen Elizabeth II. This 3p stamp pane features an ultramarine colour and is in Mint Never Hinged quality. It is part of the Decimal series and has good perforations, making it a desirable collectible for philatelists interested in British stamps from the 1971. It is Perf PL
eBay