1757 MAIL USED IN LONDON WITH GENERAL OFFICE DOCKWRA TYPE 3b (L335a). Wrapper, some faults used in London 'To Mr Chester at the Chancery Office, London' dated 14th May 1757 and on reverse good strike General Office Dockwra handstamp type 3b (L335a) with 'PENY' at left and 'G/TH' within. (Ref 139256).
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