I have finally completed this type set and found this very very tough. The last coin that I needed was the 10 kopek but this was by pure stroke of luck as the 25 kopek and half ruble are tougher to find. I am willing to go as far as low grade coins or damaged coins. This has been a difficult series to collect and can get ridiculously expensive even if they are holed or damaged. If you think they are easy to locate, I challenge you to give it a shot and take a look. Here are the coins: 5 kopek 10 kopek 25 kopek (Polupoltinnik) 50 kopek (Poltina) 1 ruble There's another variety of the 25 kopek and a heavy ruble called efimok but we'll leave that to another day. Just to illustrate how expensive these coins can be especially the smaller denomination, here are a couple: Holed 10 kopek: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200480153523 5 kopek: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330435584062 10 kopek http://cgi.ebay.de/10-Kopeken-1799-...ItemQQptZMünzen_Medaillen?hash=item5886b5e919 The polupoltinnik and poltina rarely come on the market and if they do, they aren't cheap! Surprisingly the ruble coins are the easiest to obtain. I've yet to complete Paul I copper coinage...
The 25 Kopek has a low mintage. Thanks for the thought provoking post (and congradulations on completing the collection). I knew nothing about these 1797 - 1801 coins until I read your post.