GB 1902 SGO32 Official Unmounted o.g. ex DLR archives
Stock Code: P201002957
1902 ½d Blue-green (O.W. Official). Very fine unused o.g. corner marginal block of four showing 'R' control (lower pair including control example u/m). Extremely rare, possibly unique as a block in private hands as only 23 sheets were overprinted. Ex Michael Astley collection.
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