Anyway, you asked earlier about hex receivers costing a bit more. For one reason, they're somewhat more rare. The Soviets made more round receivers in huge numbers, millions per year during the war, while hexes were very seldom made in excess of 300,000 in any single year. Being older, there was a greater chance those numbers would be further reduced by war loss and other damage. They also have a unique appearance, especially the ones with the older, text arsenal stamps.
Great find and enjoy. Range report soon?