I picked this up at an antique store in Las Vegas. I'm not sure just what its function was - it is a shallow frosted glass dish. I think it could be used as an ashtray but it also could be for something else. I'm not even sure if it is old - the image of the Flamingo looks old and the glass is very high quality but no makers marks so its tough to date. In any case it is a cool old Las Vegas thing....