Try this link. It tells you a little bit about them, and shows pictures of all of them, plus some feldpost cancellations:
http://www.stampspoland.nl/series/military/polkorp.html
The stamps are, as the link says, used by the First Polish Corps in WWI in what is now Belarus for both military and civilian mail. They are not listed in Scott, but are listed in Michel, Stanley Gibbons and Yvert. They have some value. In the 2013-2014 Michel the 10K is listed at €25 mint/€20 used, the 15K at €5/€8, the 20K at €120/€100, the 25K at €10/€9 and the 35K a €5/€8. Michel warns for forgeries.
MANY THANKS FOR YOUR REPLIES...THEY ARE THE EXACT ONES I HAVE. BEST WISHES, CAPETOWN
ps...they may well be forgeries...I have very many of each of them all MNH
Can anyone ID these Russian stamps overprinted for Poland...
capetown
re: russian stamps overprinted for poland
Try this link. It tells you a little bit about them, and shows pictures of all of them, plus some feldpost cancellations:
http://www.stampspoland.nl/series/military/polkorp.html
re: russian stamps overprinted for poland
The stamps are, as the link says, used by the First Polish Corps in WWI in what is now Belarus for both military and civilian mail. They are not listed in Scott, but are listed in Michel, Stanley Gibbons and Yvert. They have some value. In the 2013-2014 Michel the 10K is listed at €25 mint/€20 used, the 15K at €5/€8, the 20K at €120/€100, the 25K at €10/€9 and the 35K a €5/€8. Michel warns for forgeries.
re: russian stamps overprinted for poland
MANY THANKS FOR YOUR REPLIES...THEY ARE THE EXACT ONES I HAVE. BEST WISHES, CAPETOWN
ps...they may well be forgeries...I have very many of each of them all MNH