Stamp: DEUTSCHES REICH - SEID EINIG EINIG 2,50 MARK CARMINof Germany Europe
Germany Stamps Identification and Value Guide - Empire 1900-1902
File:DR 1920 118 Genius, Vereinigung von Nord- und Süddeutschland.jpg - Wikimedia Commons
Amazon.com: 1920 2.50m German Seid Einig-Einig-Einig Postage Stamp : Toys & Games
GERMANY - CIRCA 1920: A postage stamp printed in Germany, shown a Union of North and South Germany, Genius with a torch, circa 1920 Stock Photo - Alamy