The very 1st pressing of the LP did not include the song "Kissing Time" and had serial NB9001.
All pressings with "Kissing Time" are Serial NBLP7001.
The 5th pressing, a Mercury/Polygram re-release, has a UPC symbol on the cover and has a live version of "Nothing to Loose" instead of original version.
(Taken from the book: "KISS Collectibles Identification & Price Guide" - 1993, Karen & John Lesniewski)
