A glove crafted in Glastonbury and believed to have been worn by Muhammad Ali during his historic 1963 fight against Henry Cooper is set to go under the hammer once again—this time with an eye-watering price tag of up to £6 million.

The glove has become part of boxing folklore after a tear in the leather was allegedly widened by Ali's trainer, Angelo Dundee, buying Ali—then known as Cassius Clay—precious seconds to recover after being floored by Cooper's devastating left hook, famously dubbed 'Enry's 'Ammer. With Clay literally on the ropes, Dundee's intervention allowed him to come back and win the fight at Wembley Stadium.

The new auction comes more than 20 years after Christie's sold a different pair of gloves—also said to be from the fight—for £37,600 in 2001. Those gloves featured a similar tear and later appeared in an Ali exhibition, but questions have lingered over their authenticity. Christie's declined to comment on Stuart's new listing.

But now, Stuart Bull of Chard Auctions is claiming his glove is the genuine article. Originally put up for sale with an estimate of £300,000 to £500,000, the glove failed to sell in June. Now, armed with a 65-page research document and letters from Baily's factory in Glastonbury, where it was made, Stuart is relisting it with a significantly higher guide price.

"This isn't just a piece of sports memorabilia—it's a part of boxing history," Stuart said. "I'm absolutely thrilled to bits that I've been chosen to promote this and to sell it on."

Stuart claims the glove was returned to its makers, Baily's, straight after the fight. It remained in Glastonbury until it was gifted by Richard Mayers, a since-deceased managing director of the company, to his partner. The glove eventually passed to her son, Simon Hawkins, 54, from Seaton, Devon, who is now selling it.

A handwritten letter from Richard to his partner—now part of the research—reads: "I declare this glove to be genuine. I've always been aware of its significance, safety, and provenance."

The glove is currently being kept in a secret vault and will be sold in an online auction ending on 31 October. Stuart has set a much higher guide price of £4m to £6m this time, believing the new evidence will convince buyers that this is indeed the infamous glove that played a pivotal role in one of boxing's most dramatic moments.

If his claims hold up, this Somerset-crafted glove could rewrite the story of one of the sport's most iconic fights and bring Glastonbury's unique role in boxing history back into the spotlight.