Gebr. Hartkopf, Berlin (printer)
Rum labels
History
The list of German printers includes the company Hartkopf, Gebr., Berlin, Wallstr. 17/18.
[Source: Deutscher Freundeskreis Weinetiketten-Sammle (relevant page), cited 2021]
Here are full texts from the labels
de_241: Rum; Gebr. Hartkopf, Berlin; 429