REME road testers probably taken in an ex German facility in NW Europe 1944/5,bikes from left are Ariel?,Norton,Matchless,Matchless,names are written on back of photo.

A couple more photos have turned up of the same location,I think they were taken in Belgium in 1945,the guy who describes him self as "SELF" in the photos looks very similar to the guy on the G3L second from right in the bottom photo,this photo is dated on the back 17th March 45 Malines Belgium.