I like those combo Horseshoe / Silver Spur trays.

I didn't realize there was a common ownership, or some affiliation, between the 2 adjoining casinos.

Here's a Horseshoe Club chip with the combo logo. Also, a free drink scrip for either place. Note that the scrip is stamped 1983, but ChipGuide lists closing year for the Silver Spur as 1981? (Maybe just using up the old scrip at the Horseshoe (only) by that time?)

Pics from MOGH/ChipGuide.