. . . "25 pfennings, issued by the Postal Office of German Democratic Republic, honoring the fighters of the underground and illustrating the stained glass window of the Sachenhausen Memorial Museum"@en . "irn7553" . "The postage stamp was donated to the United States Holocaust Memorial Museum in 1993 by David Pearlman."@en . "No restrictions on use"@en . "No restrictions on access"@en . . . "Postage stamp"@en . "overall: Height: 2.130 inches (5.41 cm) | Width: 1.260 inches (3.2 cm)"@en .