Description
1858 MAIL LONDON TO AYLESBURY WITH 1D (SG40) RIDEOUT EXPERIMENTAL DUPLEX NO. '1'. Fine letter from 'The London Assurance' with engraved heading within, to 'Mefsrs Tindal and Baynes, Aylesbury' with die 2 1d rose-red on white paper (SG40), slight sulpurisation, lettered BA tied fine strike RIDEOUT EXPERIMENTAL DUPLEX NO. '1' MY 6 58, filing fold just clear of stamp. (Ref 139569).