LSI-20402. Wt = 11.08g
Stevens Collection

Wt = 11.38g. Diam = ~23mm
Photo from Zeno posted by Lingen

Wt = 11.02g. Diam = ~25mm
Photo from Zeno posted by Lingen

Wt = 11.01g. Diam = ~26mm
Photo from Zeno posted by hfrans