Description
CHARLES RIDEOUT EXPERIMENTAL DUPLEX NO.'1'/2D BLUE PL.7 (SG45)(OJ). Fine letter London to 'Mefs Brocklehurst and Co Macclesfield' with 2d blue pl.7 (SG45) lettered OJ tied fine strike Rideout experimental duplex No.'1' MY 21 59, codes 'HS'. Unusual combination of stamp and cancellation. (Ref 114073).