Lot 1273
GB SG X855 1971 3p block of six with split perforating head perf variety




Important Great Britain, Including the Steve McGill Grand Prix collection of Machins | S26002
Auction: 11 February 2026 10:30 GMT
Description
1971 3p ultramarine (PCP/PVA) lower right marginal block of six, with central column showing ‘’split perforating head'' variety, caused by the perforating head not being sufficiently tightened during use, mint unmounted o.g. a most interesting and striking item, originating from a strip of twenty, this block being the largest known. Offered with letter from Harrisons & Son. SG X855




