at Harrah's Rincon has yielded the following:

a) Gold Card with 3 different backs -
1) 1-800-HARRAHS CENTERED WITH ROOM FOR SIGNATURE BELOW, 2001.
2) 1-800-HARRAHS CENTERED WITH 4 CASINO NAMES BELOW, 2001.
3) 1-800-HARRAHS (1/2" space) HARRAHS.COM WITH 4 CASINO NAMES BELOW, 2002.

b) Platinum Card with 2 types of front and 2 different backs -
1) Front, no date in lower right hand corner. Back, 1-877-7HARRAH CENTERED WITH NO CASINO NAMES BELOW.
2) Front, dated 03/2003 in lower right hand corner. Back, 1-877-7HARRAH CENTERED WITH 4 CASINO NAMES BELOW
3) Front, dated 03/2004 in lower right hand corner. Back, 1-877-7HARRAH CENTERED WITH 4 CASINO NAMES BELOW.

c) Diamond Card, only have 1 - Front, dated 03/2003 in lower right hand corner. Back, no large phone number, with 4 casino names centered.

These were harvested during 2 short trips there, both lasting about 1/2 hour because it was so hard to get a slot machine, more people than machines.