Alan Alda's 'M*A*S*H' boots, dog tags up for auction

Actor portrayed iconic surgeon Hawkeye Pierce for 11 seasons of 'M*A*S*H'

Forty years after "M*A*S*H" ended, Alan Alda kept some priceless memorabilia.

The combat boots and dog tags that Alda wore while portraying the surgeon "Hawkeye" Pierce on the beloved show has gone up for auction to support a charity he is passionate about.

The money raised from the auction will go to the Alan Alda Center for Communicating Science at Stony Brook University in New York, a center dedicated to helping scientists and doctors communicate better by applying improvisational exercises and communication strategies.

Heritage Auctions is offering up the worn boots and military identification tags on July 28 in Dallas. Joshua Benesh, Heritage’s chief strategy officer, said the boots and dog tags have an "incredible" provenance since they have been with Alda ever since the series ended.

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Alan Alda, military tags and boots

Alan Alda is auctioning off his boots and military dog tags from his time on "M*A*S*H." (AP Images / AP Newsroom)

"It was pretty thrilling that what he chose to keep was something that endured with him episode after episode, season after season, throughout the entire run of ‘M*A*S*H,’" Benesh said.

Alda said he kept both items on a shelf in his office and then stowed them in a closet. Auctioning them off after all of these decades made sense to him: "I saw this as a chance to put them to work again," he said.

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Alda, 87, said he wore the boots and dog tags for the 11-season run of the show, which was set in a Korean War medical unit. Alda's character, Benjamin Franklin "Hawkeye" Pierce, was a talented surgeon who helped ease the stress of working in a war zone with quick quips and practical jokes. When the show ended in 1983 with an episode written and directed by Alda, it attracted the largest U.S. audience for any TV show in history.

"M*A*S*H" cast

Cast members of the television series "M*A*S*H" take a break on the set during taping in 1982. The actors, from left, are William Christopher, Harry Morgan, Mike Farrell, Alan Alda and Jamie Farr. (AP Photo / Wally Fong / AP Newsroom)

Military boots and dog tags on display

Combat boots and dog tags worn by Alan Alda as he portrayed Hawkeye on "M*A*S*H" are displayed at Heritage Auctions in Irving, Texas. (AP Photo / AP Newsroom)

The boots and dog tags, given to him by the costume department, "made an impression on me every day that we shot the show," Alda said. The actor won five Emmys for his work on the CBS sitcom.

Over his long career, Alda has also been a writer and filmmaker and has worked on Broadway and starred in movies. Currently, he hosts a podcast on communicating called "Clear+Vivid."

"There’s an old belief among actors that when you put the shoes of the character on, it’s easier to believe you’re the character, and I think the boots had that effect on me," Alda said.

Alan Alda on stage

The proceeds from the auction will go to the Alan Alda Center for Communicating Science at Stony Brook University in New York. (Getty Images / Getty Images)

After receiving the dog tags, Alda realized that they didn’t carry his character’s name but the names of two men he thought had likely been real soldiers.

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"I saw those names every day," he said. "It was an interesting experience to put them on. I wasn’t dealing with props. I was dealing with something that put me in touch with real people."

Military dog tags

Dog tags worn by Alan Alda as he portrayed the wisecracking surgeon Hawkeye on the beloved television series "M*A*S*H." (AP Photo / AP Newsroom)

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The dog tags carried the names of Hersie Davenport and Morriss D. Levine. Research conducted by the auction house revealed that both men were discharged from the Army in 1945. According to Heritage Auctions' research, Davenport died in 1970. Levine, whose first name was misspelled on the dog tag with an extra ‘s,’ died in 1973.

The Associated Press contributed to this report.