hello all. i also have one of these, serial #91630451, and this is the first i've heard/seen of another. found this page: http://www.guitardaterproject.org/gibson.aspx . dated it to June 12, 1990, 151st guitar made in Nashville that day. i bought it at Sam Ash on route 110 in Huntington, NY in, i believe, August 1990. gold hardware, cream pickguard, cream rings, double cream coils. i've had it since. have had lots of different PUPs in it (SD '59 in the neck, PRS Deep Dish 2 & SD Custom Custom in the bridge), now having settled on SD Antiquities in both positions, as well as upgraded electronics. no longer possess the pickguard, the rings or the original PUPs. a few months after i acquired it i tracked two cuts on Freedy Johnston's album "Can You Fly" with it: "Sincere" & "We Will Shine". on "Sincere" it's the main hooky, riffy part, on "We Will Shine" the only electric. don't remember if i'd swapped out the PUPs by then or not. pretty sure i was straight into some form of Blackface at Water Music in Hoboken, NJ. as i wrote above, this is the first i've heard of another one. it's the guitar i've had the longest and i remain very fond of it. it's a fine instrument and i'm happy to know someone else is enjoying it's sibling. now, i'm gonna go play it! pax...