invented c. 1912 by Willy Henker, who in that year opened the factory "Kunststein-Industrie W. Henker & Co" in Berlin, which was in operation until at least...
3 KB (349 words) - 16:56, 27 April 2024
Wikipedia article at [[:de:Kunststein]]; see its history for attribution. You may also add the template {{Translated|de|Kunststein}} to the talk page. For...
5 KB (594 words) - 03:20, 31 July 2024