1911 FIRST OFFICIAL U.K. AERIAL POST/"LONDON FORWARD" PRINTED BUNDLE LABEL. A good example (76 x 115) inscribed "TO London Forward" signed "SAR" (S. A. Roberts who was the Chief Aerial Post Officer) and with good strike of the FIRST UNITED KINGDOM/AERIAL POST LONDON date stamp SP 9 1911 die 1. Several creases and small corner fault but very scarce. Normal retail £375. (Ref 102845).