My 2 cents,

l pondered this and then i simply looked at the chip.

N S

Neighbors/ Shoulders

this missing link . Shoulders could have ran a game in LV possibly with Neighbors

maybe at the Lyon Hotel as well

these chips were found TWICE with Lyon chips. years apart and in different states. (Nevada, Arizona)

so yes the order card is obviously correct, 1951 las vegas, and he worked at El Cortez.

maybe ran a poker game idk.

i originally listed them as Las Vegas 1951 chips, then noticed the chip guide listed them as Yerington, knowing i found them with yerington chips twice! im like ok

they are on my ebay if anyone wants one lol and affordable . thx