A Roman Glass Gaming Die

[randomness]

Thanks to JP, on a private mailing list:

http://www.christies.com/Lotfinder/lot_details.aspx?intObjectID=4205385

Comments

[cathyr19355.livejournal.com]

I blush to admit, I answered my own question by clicking on the Christie's link r_ness provided. The headline on the web article describes it as a 20-sided die. But thanks for answering my question!