"No restrictions on access"@en . "No restrictions on use"@en . "Austrian 30 + 30; Ausstellung Niemals Vergessen!"@en . . . . . . "The postage stamp was donated to the United States Holocaust Memorial Museum in 1995 by Irina Kamenkovich, Tamara Kamenkovich, and Natella Voiskinskaya, the family of Ilya Kamenkovitch."@en . "Postage stamp"@en . "irn9518" .