Worldwide Stamps and Postal History

1911 First UK Aerial Post, London postcards in brown, red-brown (2) or green (Sep 9, 11, 13, 15 cancels), envelope in red (Sep 14) and scarce emergency printing Windsor envelope in brown, also a real Photo postcard of Hamil and Gresswell at Windsor, mainly fine, one card with printed greetings from the organising committee. Only 408 ordinary covers flown from Windsor. (7).
Suggested price: £ 200-250