HEROES OF THE BLUES by R. CRUMB (Yazoo), complete 36-card set, top condition!!!

This is the ORIGINAL set of R. Crumb's famous "Heroes of the Blues" set of 36 "trading cards" of top bluesmen (and a few good women), first published by Yazoo Records in 1980. It is not one of the later copies of this set.
It has been in my possession since purchase, and been kept in an enclosed space. Except for a little wear to the corners of the box, and the expected minor yellowing (only of the box), it is in remarkable condition--better than any other set I have seen for sale. The cards themselves are perfect, with no dog-earring or wear.