i've known about the error playboy roulettes now for some time and i brought attention to the variations of the first issue trump plaza and current tropicana chips to you. just now i am wondering if there are error chips from harrahs first issue, harrahs trump plaza, and or claridge 2nd issue bud jones chips. there are so few harrahs and HTP chips to compare but what about claridge. got to be 10 - 20 complete sets .i remembered your catalog has a sample chip page for HTP chips and i took a better look and voila' . there's a ton of variations/errors.
looking at the chip i'm basing the variation from HARRAH'S

1 the satelite chip the red circle the point is between the RR the rest are at the H.
2 6 pointed star chip the red circle the point is on the H the rest are between RR.
3 cresent moon chip moon is on bottom on all. red circle PLAZA is in the 12 0 clock position the rest HARRAHS 12 o clock.
4 snow flake chip red circle the point is on H the rest are between the RR.
5 4 squares chip 4 red circles the point on the H other 3 between the RR.
6 clover leaf chip the base of the stem 4 chips are at the U in trump 1 at the T in trump 1 at U in roulette 1 between LE in roulette.
7 card pips chip the red circle the heart is at ZA of plaza the other 6 are at H in harrahs.
i imagine there are more . image from jerry's chip catalog RICH ATLANTIC CITY ROULETTE CATALOG 2002