The tunic worn under Christopher Reeve's cape in 1978's Superman: The Movie is going up for auction with a starting bid of $50,000.
The costume will be auctioned by Nate D. Sanders Auctions on November 19. Interested bidders may participate in the auction online.
Says the auction house, "The lanky 6'4" Reeve refused to wear a muscle suit under the costume and trained with bodybuilder and Star Wars actor Dave 'Darth Vader' Prowse for several months to prepare for his role. Academy Award-winning costume designer Yvonne Blake designed the Superman costume, which was constructed by Noel Howard for London-based Bermans and Nathans. The famous suit was made from a flexible formulated German-made fabric, which absorbed sweat stains."
Reeve played Superman four times and the costumes from each production were reused for various scenes in the sequels.
The label on the back of the blue tunic is typed "CHRISTOPHER REEVE / 12312 WITH MUSCLES / SUPERMAN."
You can see more photos and get more information at the link above.