was meant for something OTHER than a guest's room key. The plastic fob is too large (2-1/4" diameter) and too "floppy" to have been used by guests who would carry around their room keys during their stay. That's why I was thinking maybe it opened a supply room, say where maids would get fresh towels and toilet paper. Or maybe a maintenance man's boiler room key? Safe deposit box key, maybe, but if those keys are the originals (I have no way of knowing), they look more like they'd work ordinary doorknobs/deadbolts.

I missed it on my first pass through the swap meet, in a heap of junk (errrr, priceless treasures) thrown onto a table by one of the "regular" vendors. Jewels, old watches, a few Chuck E. Cheese coins, you-name-it. By good fortune the "casino" side of the daisy was left up after people rummaged around, glinting in the sun, and I zeroed in on the word Casino. On the other side, there is only a black numeral "1" written in marker.