I am trying to get a value on an album.I may be clearing out some LPs but cant find a guide for one of the albums. Album in question is King Biscuit Flower Hour \r\nDIR Broadcasting ALB-01 1990;We're No Angels, The Allman Brothers. Its in mint condition and appears to be a promotional lp. I usually check whats for sale to get an idea of price but cant find this anywhere for sale. Any ideas?