There are 7 souvenir cards listed in Medcalf & Russell 2nd edition book, page 20.

One is not listed as there are 8 souvenir cards (the missing one is dated January 1989). 2BN-7 is  the newest and dated August 1989.  The missing 2BN  is the Florida United Numismatists, Inc. Five Dollar Gold Certificate (see bottom image).

2BN-1

2BN-2

2BN-3

2BN-4

2BN-5

2BN-6

2BN-7

Unlisted