1911 FIRST U.K. AERIAL POST LONDON ENVELOPE IN SCARLET TO STROUD, GLOUCESTERSHIRE. Fine London envelope in scarlet with insert to Stroud, Gloucestershire with KGV 1d Downey tied very fine strike 'FIRST UNITED KINGDOM/AERIAL POST/LONDON' date stamp SP 18 1911 Die 2. On reverse 'STROUD' date stamp SP 19 11. Insert message reads '... I came this morning & could only get post cards but this afternoon have been'. (Ref 150725).
