I don't find those chips listed in the ChipRack 8th Edition as being from Binion's Horseshoe but I could be wrong. You probably should have asked your question here first before you bought the chips.

Here's a link to the auction and the [picture of the chips is below:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3278988325

Cheers!
Bill