purchased the above
item back in May 2001. The only information that the seller was
able to provide was that the overprint was produced in 1915 by an army
company whose commander was General Trojanowski. The only army
commander I can find is Mieczysław Ryś-Trojanowski who in 1915 was the
commander of the 3rd Foot Regiment in the Polish Legion.
The overprint read 5 Fen / POLSKA / POCZTA which was printed using letterpress.On the reverse of the stamp is an expertisation handstamp "Heintze".
In view of the fact that I cannot find out anything more about this item it leads me to suspect that this item is a forgery.
If anyone has any information I would be interested to find out more.
Jan Kosniowski - email - jpkos @ aol.com