Hi,
it was a Henry Jourdan flying barrel airplane,he was a French designer,built this machine
in 1910,and in 1911 and 1912,he modified it with some improvements.
http://chezpeps.free.fr/0/pre-1914/02-51_100-copy_paste_Breguet-Pre-1914-Aircraft-Challenge.html
https://www.flickr.com/photos/tom-margie/1430278547