Hello,
Currently on ebay are two nice photos of Vickers F.B.27 Vimy prototypes B9952 & B9954 at:
https://www.ebay.it/itm/VICKERS-VIMY...4AAOSwxA1fAiep
https://www.ebay.it/itm/VICKERS-VIMY...IAAOSwCNNfAicx
These photos have been previously published but the quality of the images made it appear worthwhile posting the links here.
Regards,
Clint