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GB 1901 SGO17 Official "R" Control block
£250.00
SKU: P201005483
1901 ¬Ωd Blue-green (I.R. Official). Very fine and fresh unused o.g. bottom right hand corner marginal control "R" block of six (Control example unmounted o.g.), Perf I, right side of the mill sheet. Scarce. Ex Michael Astley Collection. - P201005483