Heligoland Lighthouse (German: Leuchtturm Helgoland) is located on Germany's only offshore island, Heligoland. Constructed during World War II as an anti-aircraft tower, it was turned into a lighthouse in 1952. It features the strongest light on the German North Sea coast with a range of 28 nautical miles (52 km) so that it can be seen as far as on the East Frisian or the North Frisian islands and Halligen. The lighthouse is operated by the Tönning water and shipping authority.
I'm very happy to get these two cards with a matching postmark and the 2023 issued Heligoland Lighthouse stamp. The first card shows a painting of Birgitt Schumacher, the second card shows a painting of Stefan Dobritz.
Stamp:
Heligoland Lighthouse - Issued: 06-07-2023