"The postage stamp was donated to the United States Holocaust Memorial Museum in 2018 by Jeffrey Hamburger."@en . "German postage stamp"@en . . . . . . . . "irn671007" . "No restrictions on access"@en . . "German postage stamp, 4 million marks."@en . "overall: Height: 1.000 inches (2.54 cm) | Width: 0.812 inches (2.062 cm)"@en . "No restrictions on use"@en . . .