

This postcard has been sold
Colorized postcard depicting the « dark cave » on Helgoland, with imposing cliffs, an archipelago, and a rowboat in the foreground. The back features handwritten text, a 5 pfennigs stamp from « Deutsches Reich », and a cancellation marked « HELGOLAND » dated May 8, 1911. The address is directed to « Herr Richard Brügmann » at « Schwanebeck 24 » in Hamburg.