Mog-937c. Wt = 20.47g. Mint not certain
Stevens Collection

Wt = 19.67g. Diam = ~18mm
Photo from Zeno posted by Ansari

Wt = 20.2g. Diam = ~18.5mm
Photo from Zeno posted by Ansari

Wt = 20.2g. Diam = ~18mm
Photo from Zeno posted by Ansari