Hello,
Currently on ebay is a photo of a crashed Friedrichshafen G.IIIa at:
https://www.ebay.de/itm/X4652-Foto-W...QAAOSwG4Be7yNA
Other photos from the same origin have been of Bogohl 8b aircraft.Indeed having checked
http://www.buddecke.de/bg8.htm the aircraft is G.823/18 of Bosta 25b
Regards,
Clint