Add to ORKGTan paper with printed information in blue titled, Gerichstasaffe Ludwigshafen a Rb. Includes an address on the opposite side. Information Provided by Michael D. Bulmash: A law enacted August 17, 1938 required Jews with non-Jewish forenames to assume the name Sara if a woman and Israel if a man. This law became effective January 1, 1939. These names were to be used on all correspondence -- private or official -- including return addresses on mail. This is a folded invoice from the Court of Justice at Ludwigshafen to an Israel Weingart at Manheim.https://digital.kenyon.edu/bulmash/1984/thumbnail.jp