I did check TGT (older version) and that's all I came up with. SO do these MS_50 highly RARE, limited edition, illegal casino dice go for $4,000 or what. (please don't shoot, I'm just kidding!) I paid big bucks for these. A drink on the house...

Considering they could be from the Riverview Saloon in Twin Lakes, WI. It's going to be pretty hard to justify any identification on these.

Hopefully someone will at least recognize the age from the style of marking.