£850
1911 (Sep 9-16) London to Windsor envelopes in green or purple-brown, London to Windsor postcards in brown (5), red-brown (4) or green (3), and Windsor to London postcards (3) all with Aerial Post datestamps (two code "5" or "6" c.d.s of Hendon Aerodrome), several cards with the sheet position identified, two bearing KEVII ½d stamps, one to New Zealand franked by two KGV ½d stamps, all fine. (17).
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