1851 DERBYS/"ALVASTON" UDC (DY9)/2d BLUE Pl.4 (NC)(SG14). Large envelope (219x91) London to Alvaston near Derby with fine four margined 2d blue plate 4 (SG14) lettered NC tied London '27' Inland office numeral. On reverse very fine "ALVASTON" udc in black (DY9) and DERBY date stamp FE 20 1851. Fine usage. (Ref 49423).
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