Just picked this one up. Probably from somewhere between '88 and '91. ESP serial numbers are pretty much useless for dating. However this one appears to have come from the ESP custom shop on 48th St in NYC which is pretty awesome. Crackle finish looks amazing in person. Unfortunately the previous owner had Steve Vai sign the top. Besides that it's in great shape. Sounds amazing. Any tips on removing paint pen without damaging what's underneath?