1856 MAIL DERBY TO EDINBURGH 1d BRICK-RED (SG30) 'DERBY/242' SIDEWAYS DUPLEX. Envelope Derby to 'The Bank of Scotland, Edinburgh' with Die 2 1d pl.34 BRICK RED SHADE (SG30 SPEC C8(2) lettered MC, small fault at foot, tied light strike 'DERBY/242' sideways duplex OC 18 1856. RPS Cert confirms 'Brick-Red'. Very scarce shade. (Ref 145239).
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