Mog-5001c.
Photo from Baldwin (2001), sale 26, lot 1360

Wt = 11.62g. Diam = ~24.6mm
Photo from Amit Mehta

Wt = 11.60g
Photo from Zeno 212688 posted by Lingen

Wt = 11.19g. NB mark to left of AH
Photo from Oswal Auctions, sale 93, lot 111