Hey all,

I was going through all of my magazines and amongst all the bakelites, circle 10s, 21's, and everything else, I came across these 2 unmarked mags that look identical to circle 10's but upon closer examination, have really minor details that differ than most of the mags. Can anyone help me identify why these are different and unmarked?

Curvature is different, ribbing is different, there's something on the inside wall that looks different as well. Any help with this would be great.

Thanks

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I think the one on the right is a painted bulgarian and the one on the left looks like a polish.  Look at the followers, if the painted bulgy has a plum looking follower , than thats what it is.