Mog-3598r. Wt = 1.27g. Diam = ~11.3mm
Photo from Zeno 235210, posted by Lingen (ex Imperial Auctions, sale 25, lot 201)

Wt = 1.36g
Photo from Todywalla, sale 27, lot 74

Wt = 1.2g?
Photo from Zeno 83175, posted by naeem