eBay: Original Superman # 1 Summer 1939 PGX.
I'd have to run through my archives, but I think this is the first PGX book that finished at the top of the list for the week.
Final Tally: $25,000.00 Seller: midniteman1( 227)
Description:
"For sale.An original Superman # 1 from the summer of 1939.Book has been graded 7.0 F/VF extensive restored condition.Would make a nice addition to someone's collection."