There are three $1 LGKEY chips in TCR, and all are maroon. I didn't look at enough detail I guess. 5751 says ELDORADO CLUB $1.00/NON-NEGOTIABLE in TCR 17th edition. There is another NCV D1985 that is the same except there are no cents in the $1 denomination. That's the chip that is in TheChipGuide as CG033043. It should show the TCR number N5751 which apparently was added to TCR in the latest edition.

N5750 is in TheChipGuide but there's no image. Makes you wonder if maybe that chip doesn't exist at all as a $1 value chip. Anybody have a scan of that chip to submit to TheChipGuide? I don't.