145357 1842 MAIL LONDON TO GISBOROUGH, YORKS 1d (SG8) ON REVERSE 'UNION ASSURANCE OFFICE' WAFER SEAL AND WITHIN ADVERT PROOF FOR SAME.

1842 MAIL LONDON TO GISBOROUGH, YORKS 1d (SG8) ON REVERSE 'UNION ASSURANCE OFFICE' WAFER SEAL AND WITHIN ADVERT PROOF FOR SAME. Wrapper, some splitting and reinforcing, also tear, from London to 'Mesfsrs. Clarke and Trevor, Gisborough' 1d (SG8), cut into and filing fold affects tied black Maltese cross of London. Within is fine printed advertisement proof 'UNION ASSURANCE OFFICE...PORTMAN SQUARE'. On reverse very fine oval red embossed wafer seal 'UNION ASSURANCE OFFICE 1714' and 'GUISBOROUGH' date stamp NO 12 1842. (Ref 145357).