Find Exchange Partners OnIf you can see this item in the Colnect.com catalogue, then it's possible that there are collectors who are willing to exchange with you. You will need to register with Colnect.com to see a list of the names.
Heinrich von Stephan (January 7, 1831 – April 8, 1897) was a general post director for the German Empire who reorganized the German postal service. He was integral in the founding of the Universal Postal Union in 1874, and in 1877 introduced the telephone to Germany.
Read more..