China is a world leader in mass producing and manufacturing of copying products (knock off versions) worldwide. Since the company in Russia now defunct and has been out of business for many years that has really made it easier for them to market a not so efficient or competive model (copy cat version) 2 stroke of their own. It was very enlightening and interesting to see the photographs that you provided.Some of us were vaguely informed that this is where the original design came from. So this concludes any tales of speculation of the real origin of the now highly and extensively used China engine, Thank You Dagger