From a Facebook group, this purportedly shows a group of "beute" British tanks being prepared for combat in a French workshop by the Germans. I don't trust too much in the facebook captions. Is it correct? I've never seen this picture before and I thought it's rather interesting.
Ateliers Saint Germain at Monceau-sur-Sambre, in 1918 home of the Bayerischer Armee-Kraftwagen-Park 20. The tanks seen in this picture all seem to belong to the lot captured in the Somme area since March 1918. Workers are Belgian civilians employed by B.A.K.P. 20. Vehicle in foreground is an A7V - either a tank chassis or an Ćberlandwagen.