[hrf]

Welcome to the forum Jeff, and your photos are better than many posted here.

Anything's possible but I doubt it was ever outside the USA, as it looks exactly like those made 1860s by Bacon Mfg. Co. of Norwich, CT.

Some are also marked Merwin & Bray, a NY sporting goods dealer.

Unfortunately, the barrel is badly pitted and markings are likely gone.

It's just hard to picture a Russian soldier carrying such an impotent weapon, or that any would have been exported.