Corinphila Auction 291-297 Day 2

First UK Aerial Post London-Windsor Priviledge Mail 1911 (Sept. 9): Violet envelope with lettersheet sent from Sir Alexander King K.C.B. Secretary to the Post Office to his niece in Wales, franked with King Edward 1d. rose-red cancelled by "FIRST UNITED KINGDOM/AERIAL POST LONDON SP 9" with "Belfast SP 11" on reverse and "Bangor Co. Down SP 11 2.30 p.m" arrival mark on front. Fine and scarce usage.