These cinderellas were issued in June 1944 by a flak unit, Stab gemischte Flak-Abteilung 645 (v) [Headquarters staff of mixed Flak unit 645 (v)], near Königsberg on the northern part of the Eastern Front, at Feldpost number L34622.

Catalog numbers are those found in Michel’s Handbuch-Katalog Deutsche Feldpost, 1937-1945, Third Edition (1991). These items are no longer cataloged in current versions of the same.