The Krakow 1919 overprint issues (Austrian stamps overprinted POCZTA POLSKA) are among the most challenging stamp issues to authenticate. Due to the limited printing of these overprints, forgeries have been abundant and readily found in the philatelic markets. The following submenu items represent the work of Michael E. Melnichak, PhD, who extensively researched the background of this issue and the methods of authenticating the overprints. For access to topics listed below, click on the appropriate submenu items under Krakow Expertizing on the left.
Krakow Review - Excerpts from Melnichak’s monograph titled, “The Typographic Overprints of the 1919 Krakow Issues of Poland”.
Supplement - Updates to the above-mentioned monograph.