QUOTE(IgorS @ Mar 26 2008, 11:01 PM)

Your coin appears to be unlisted in Bitkin and Diakov.
"No crosses over eagle's crowns" is listed only for 1727.
GM-222 (pl XIX, 6) 1727.
no. 222 Rouble "...Les couronnes sur la tete de l'aigle n'ont pas de croix."
Tranche: Voir no.174 "Rouble Russe de l'Hotel des Monnaies de Moscou"
GM is silent on rarity, suggesting it is common. But what was considered "common" in the latter half of the 19th century might be scarce or even rare today.
Nice coin, Ola!