Swedish coinage in some way influenced Russian coinage - at least in planning stage as there were rare examples of plate money made late in reign of Petr I. Also 5 kopek coin was a bit of token issue in 1725 since was so small - a lot like the tokens issued in Sweden during the reign of Karl XII. As much as Petr I and Karl XII were enemies on the battlefield Petr I really did respect him and Sweden for being such strong adversaries.
Indeed, because he married a German woman who converted to Russian Orthodoxy and soon became much more popular than her dilettante husband and soon deposed him and reigned in her own right as Ekaterina II - Catherine II The Great. Petr III was just a pothole in history of Russia.
Coins of tsar Peter III are very rare and expensive. Because his reign was very short (about 6 month).
Peter III coins are still somewhat affordable if one is willing to go for lower grade condition or overstruck coins. I got very lucky with the silver coin. This is an example of a ruble And a copper coin - 4 kopek. Note that most of these coins were overstruck over 2 kopek due to copper inflation and these were immediately overstruck in the following year due to inflation fears. And then a cheap Peter III coin that is overstruck. I have been trying to hunt down silver coins of Ivan VI but this proved to be too difficult in any condition. Copper coins are still doable.
Siberian coin. Two kopeks 1769, copper. Coins of this type were released on Kolyvan Mint for an appeal in Siberia only. Such coins weren't circulatеd in European part of Russia. Such coins were released since 1764 until 1780. I got very good deal: I paid $15 only.
Siberia. One kopek 1768, copper, weight - 6,9 g., size - 25 mm, thickness - 1 mm. Ruler: Catherine II the Great (1762-1796). Coins of this type were released at 1764 and 1766-79.
I've updated some of the type sets - haven't updated it for a few years. Latest highlights are these: Note that there are die rotation error coins (the 1840 1/2 kopek does have die clash as well - pretty neat!) Tsarist Silver type set (1802 - 1917): http://gxseries.com/numis/rus_imperial/ag_group_1802_1917.htm Tsarist Copper type set (1700 - 1801): http://gxseries.com/numis/rus_imperial/cu_group_1700_1801.htm Tsarist Copper type set (1802 - 1917): http://gxseries.com/numis/rus_imperial/cu_group_1802_1917.htm Some other type set coins may be affordable but most are getting a lot harder to find in reasonable condition. Not going to attempt a type set of the earlier Tsar silver coinage.
Thanks for postiong your coins and for the history lesson. Maybe if history teachers used coins fewer students would fall asleep!