Keywords: Princess Olga of Hanover.jpg en Princess Olga of Hanover 1919 en The Wartenburg Trust asserts that all the images in their collection were published in Europe as postcards or prints prior to 1921 Original publication Published as a postcard in Europe Immediate source Private Collection “ Wartenberg Trust K K Hof-Atelier Adèle Wien other versions PD-old-70-1923 Original upload log en wikipedia OlgaofHannover jpg wikitable - 2008-11-15 22 44 427×644× 44396 bytes Mariaflores1955 <nowiki> Licensing PD-US-1923-abroad Princess Olga of Hanover Photo from private collection by Gustav Liersch Co Berlin 1919</nowiki> Princess Olga of Hannover and Cumberland Atelier Adèle |