If you’re looking for the ultimate superhero movie collectible, or if you want to seriously up your cosplay game, you may be interested in bidding on a couple of items on the Nate D. Sanders Auctions website. Christopher Reeve’s iconic Superman costume from the 1978 film and Michael Keaton’s Batsuit from "Batman Returns" — or at least parts of them — are up for grabs.

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The first of the two items is the “muscle tunic” worn by Christopher Reeve in “Superman: The Movie.” It was used to film the flight scenes, and features “two stitched holes at the side, used to attach the flying harness.” There are also “[f]our snaps at the top for attaching the cape." While the tunic does feature the signature Superman shield, it's far from complete, and looks a lot like a gymnast’s leotard. A clever cosplayer could use it to create a “what if they dressed male superheroes like their female counterparts” outfit, but an opening bid of $40,000 might be a little steep for somebody wanting to make a point about sexism in comic books.

The second item is a Batsuit worn by Michael Keaton in 1992’s "Batman Returns." It's described as "formed black rubber segments covered by the textured integral cape and cowl style mask, with long black leather gloves, boots and gold plastic belt and bat symbol." It too is only a partial costume: The cowl, the cape and the body are all original, but the gloves, shoes, belt and insignia are reproductions.

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The Batsuit is displayed on a mannequin with the "chiseled face" of Michael Keaton, and stands 6 feet 5 inches. It includes a base and is listed in "overall very good condition," with "[s]ome glue present where cape and cowl meet." The opening bid is a mere $35,000.

If you’d like to avail yourself of some movie history, you have until Jan. 26 to place a bid.

Other superhero and comics memorabilia on offer includes a third printing of "Superman from the 30s to the 70s" signed by legendary Superman artists Curt Swan and Murphy Anderson, as well as Dennis Janke, Doug Hazlewood, Jon Bogdanove and DC editors Mike Carlin and Julius Schwartz. Also available are several hand-drawn "Peanuts" daily strips by Charles M. Schulz, including the first appearance of the character 555 05472.

(via The Hollywood Reporter)