I'm not overly knowledgeable or much of a collector of these things. But like RB Rooson says, they are fascinating to own, shoot and in their simplicity an engineering marvel (to me anyway). Reminds me of 10 or more years ago I started buying SKS's. Everyone said I was crazy. They're cheap, poorly made etc...... Until they shot one, then they started buying them. Try to find one of them for $59 today!! or at any price sometimes. so for now, buy em, and shoot em, have a ball. I have heard there were some with laminate stocks, never have seen one, would suspect they are more rare. If I see one, the credit card will be on the counter fast. I hear there were Hex shaped receievers on some early ones too. I'll be buying one of them if I ever see it too. Ammo is cheap, ballistics look about like a .308, accuracy can be very good depending on the rifle.