Yeah, I have similar figures. I bought them at flea markets in the early 90s, as Russians were making their way here after the collapse of the Soviet Union. They'd show up with a trunkload of Russian products, like matriushka dolls and lacquerware, silks, Red Army surplus items, and toy soldiers. I was surprised to see that metal soldiers were still sold as toys there, long after they had been replaced by plastic here in the West. And they ranged from toy quality, to the early connoisseur style, and often the same casting, painted to different grades of quality. I didn't collect the connoisseur figures, but I wish now that I had bought those. For a pair of jeans, you could have had a car trunkful.
I've got a couple of figures with bases similar to these-oblong, and stepped. One is a figure of Suvarov, another is a Cossack from the civil wars. I have a Red Army officer wearing the shlem helmet, on a cast base, larger, cast as a square. I have seen similar figures and castings since then, on tables at shows, and on eBay. Sergei Ilyashenko had some in his old Lead Army catalog. I've thought that they probably come from the same source, the same molds.
Prost!
Brad