Lot 518 Great Britain

Controls: Wmk Block Cypher, 5d brown, mint assembly of 16 control singles, imperf margins, odd toned gum affecting margin, noted A24, C25, F26, H27 (Cat £100), I28, K29, M30 (Cat £100), O31, Q32, S33, Waterlow printing U34 (Cat £550, 2 tone spots), V34 (2), odd U/M noted. High cat value.