. "The poster was donated to the United States Holocaust Memorial Museum in 2019 by Peter Koper, the son of Antoni Stefan and Sophie Koper."@en . . "Poster"@en . "Rectangular poster: black ink on white paper"@en . "Poster notifying the population of Warsaw of 100 Polish resistance members to be publically executed in December 1943."@en . . "irn708893" . "No restrictions on use"@en . . . . "overall: Height: 18.125 inches (46.038 cm) | Width: 12.375 inches (31.433 cm)"@en . . "No restrictions on access"@en .