Military Surplus AK Magazine Score!!! Need Help With Identification! ?

We scored some nice Surplus AK magazine’s fresh out the crate! We need some help with ID on them. Pretty sure we have some black phosphate East German 5 rib mags. The rest are 2 rib, BHO (Bolt Hold Open) that we think are Yugo or Serbian mags, but we can’t rule out Croatian at this point. What say you?

The article I referenced in the video:
http://www.smallarmsreview.com/displa...

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