Deutsche Lichtbild-Gesellschaft.m.b.H., 26 Romintener Strasse Berlin

The identification is via an advert giving these details and showing the DLG logo. This came indirectly from Helmfried Luers, publisher and editor of The Postcard Album (TPA) who has now published an article which gives very full details of DLG (TPA number 32).

At this link there is a large collection of illustrations of DLG cards, with many of the subjects identified.

If you look up the full name of the firm on the web you will probably only find articles on a maker of German propaganda films between the wars, which seems to me to have exactly the same name, but this is completely different.

DLG 268-2
DLG 268-2 rev