That’s an interesting find slummer, and thanks for posting the link.
I’ve been checking through Bomber Command Losses 1944 by W R Chorley, and cannot match up any loss in that part of France on 13th July.
Les Gatines d’Oulins is to the West of Paris, but most of the action that night (12/13th July) was to do with the Revigny Raid, and most of our losses were to the South and East of Paris.
Maybe the photo was taken on 13th July, but the aircraft had come down some time before?
I note that ME668 of 106 Sqn is listed as coming down at Oulins, 3km N.E. of Anet, on July 7/8th. This is the same area as quoted for the photo on flickr. The target was the St. Leu D’Esserent flying bomb storage dump. 29 Lancasters and 2 Mosquitos lost – 14% of the force. And they wanted French ops to count as 1/3 of a normal operation!
It’s definitely a Lancaster, but maybe not G-H equipped. There were a few experimental raids flown at around this time, but it may just be displaying the daylight recognition markings that were also used in the summer of 1944.