I have the 20th Anniversary Set in the blue booklet with all the paperwork ....
Resorts "20th Anniversary" Commemorative Chip Collection / Atlantic City, NJ
Limited Edition Set Of 20 Chips / 20th Anniversary 1978 - 1997 / Issued in 1998

Here is what people had to do to complete the set:

This "Limited Edition" chip set was offered to the casino players. The chips were offered
1 chip per per person - per week. To get your weekly chip, you had to earn 5 or more slot
points or a minimum of 2 hours of rated table play with a $10 average bet in a gaming day.

Each chip of this 20 piece collection depicts a different landmark event in the history of
Resorts, and the year it happened. Chips were collected weekly beginning with the 1978
chip, and ran throughout the 20 week anniversary celebration period ending up with the
1997 chip.

Al Varelas / USMC
SS-1654