Warsaw Ghetto postal card, denomination 25, never issued

The Katz Ehrenthal Collection is a collection of more than 900 objects depicting Jews and antisemitic and anti-Jewish propaganda from the medieval to the modern era, in Europe, Russia, and the United States. The collection was amassed by Peter Ehrenthal, a Romanian Holocaust survivor, to document the pervasive history of anti-Jewish hatred in Western art, politics and popular culture. It includes crude folk art as well as pieces created by Europe's finest craftsmen, prints and periodical illustrations, posters, paintings, decorative art, and toys and everyday household items decorated with depictions of stereotypical Jewish figures. 

The Warsaw ghetto stamp was donated to the United States Holocaust Memorial Museum in 2016 by the Katz Family. 

Warsaw Ghetto postal card, denomination 25, never issued 

overall: Height: 4.250 inches (10.795 cm) | Width: 6.000 inches (15.24 cm) 

Warsaw ghetto stamp marked 25 issued by the Warsaw Ghetto Resistance Organization (Żydowski Zwia̜zek Wojskowy). The Warsaw Ghetto in Poland existed from October 12, 1940, to May 16, 1943, when the Ghetto was liquidated by German forces. The stamps were manufactured in an effort to establish a ghetto mail office by the underground, but were not issued for use. This stamp is one of more than 900 items in the Katz Ehrenthal Collection of antisemitic visual materials. 

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Rectangular paper stamp with a graphic design stamped in blue ink on the front with the denomination 25, a Star of David, and Polish text. The reverse is blank.