Lot 514 Great Britain

Controls: Wmk Block Cypher, 1s bistre-brown, mint assembly of 33 control singles, imperf margins, odd toned gum affecting margin, noted A24, D25, I28 (6), J28 (3), L29 (3), N30 (4), P31 (4), W35 (3), P31 (3), R32 (2), K29, U34, V34 (2), odd U/M noted. High cat value.