A note on the Stripping Empress error cards:

"The first 100 cases contained a Stripping Empress error set. In the regular Stripping Empress set, a girl in white strips on the front of the card, and a girl in black on the back of the card. In the error set these girls have their own card with pictures on them stripping on both sides. It takes a total of 18 error cards to equal the 9 cards in the corrected version."

This is a quote from page 22 of the Lasting Images price guide to Adult Entertainment and Fantasy Art Pinups Cards Vol.2, from the set description of the 1993 Hot Shots Emperor's Collection (aka 1993 HS2).

A note on the 9 card Limited Prototype set:

"A 9 card promo set called "Girl, Girl, Girls" was also included in packs. The cards are numbered 1 of 9, etc., and have "Limited Prototype" written on them."

This note has been quoted from page 22, of the Lasting Images price guide to Adult Entertainment & Fantasy Art Pinup Cards Volume 2, in the description for the 1993 Hot Shots Emperor's Collection set (aka 1993 HS2).