1911 FIRST U.K. AERIAL LONDON POSTCARD IN BROWN WITH ' WRIGHT'S COAL TAR SOAP' ADVERT. Used London postcard in brown, tone spots and address faded with KGV ½d part strike 'FIRST UNITED KINGDOM/AERIAL POST LONDON date stamp SEP 9 1911. On reverse fine printed advert 'PRIZES FOR CHEMISTS./We cannot afford to give a £10,000 prize, but we do offer valuable prizes to enlist your co-operation in our View competition/£44 IN PRIZES TO CHEMISTS./Keep this souvenir of the first U.K. Aerial Post ..... WRIGHT'S COAL TAR SOAP'. Faults but priced accordingly. (Ref 140749).