I think that the orange LG-KEY Holiday Spa and Barney's are test chips and were never made for the casino. However, since they do exist, we will code them:
E5592 Holiday Spa
E5593 Barney's
Are they the same on both sides?

E5594 Primadonna, Reno "2 Roulette" White
E5595 "Sahara Reno Roulette 2" Purple

Stardust business card chips came in $100 Paper and $1000 Paper & Metal. The metal chips came in both blue inlays & inserts and white inlays & inserts. We have the following listed of which you inquired:

Stella $1000
V6652 Metal, Blue
N7124 Paper, White

Swain $1000
N7006 Paper, Blue
N7125 Metal, White
Are yours like these or different?

Sopers' Montgomery Pass $2
N5672 Cream w/ 3-Navy Fine Print
N3273 Gray w/ 3-Dk Green Bold Print
E5596 Gray w/ 3-Dk Green Fine Print (Yours)

The Chief
V8210 Beige
E4582 Green
E5587 Brown

Do you agree? Any discrepancies? Thank you for your scans and for giving us a chance to add your chips.

Allan M.