Sixty years on, the ball that won England the World Cup gives up its secrets
Sir Geoff Hurst hit it three times. Thirty million people watched it on black-and-white television. Then a West German forward put it under his arm and took it home.
Sixty years after the 1966 World Cup final, the most famous football in England's history has been examined as never before. NXCT at The University of Manchester and the National Football Museum have produced the first 3D X-ray scans of the Slazenger Challenge 4 Star used at Wembley on July 30, 1966 鈥� rendering, in extraordinary detail, both its 25-panel hand-stitched leather exterior, and the degraded latex bladder sealed inside it since the day England won the World Cup.
It is a portrait of a vanished craft. Each Challenge 4 Star took two-and-a-half hours to stitch by hand at the Slazenger works in Horbury, near Wakefield, and had to meet strict specifications. 14 to 16 ounces in weight, 27 to 28 inches in circumference. The ball earned its place in the final by winning a blind test of more than 100 footballs at The FA's headquarters. The now iconic orange was not a stylistic flourish, but a practical stand-out effect for the monochrome television sets of 1966.
Set against the ball used in this month's 2026 World Cup final, the scans make sixty years of progress impossible to miss. The Trionda is built from four thermally bonded panels of polyurethan, polyester, viscose and synthetic rubber, and carries an inertial measurement unit sensor that tracks every contact and position change. In 1966, the technology was a needle and thread.
X-rays are a fantastic tool to non-destructively see inside objects, this technique has been used a lot in cultural heritage previously but never to look inside such a nationally significant football! Although a football is mostly air on the inside, we were able to see the makeup of the leather panels, the stitching and the perished air bladder in amazing detail thanks to X-ray computed tomography. Everyone at the NXCT in the University of Manchester would like to thank the National Football Museum for this exciting opportunity to scan such an artefact and to hold it in our own hands!
The ball's journey to its casing at the National Football Museum is just as fascinating as the final it was used in. After England's 4-2 win in front of some 97,000 spectators, Helmut Haller 鈥� who had scored the opening goal 鈥� carried it back to Germany, claiming tradition entitled the first scorer to keep it. It stayed there for 30 years, until a consortium of the Mirror Group, Virgin, and Eurostar bought it for 拢80,000 and repatriated it ahead of Euro '96. The initials on its surface belong to Uri Geller, who signed it for luck as a pre-tournament publicity stunt.
Today, the ball sits on permanent display in the 'England on the World Stage' section of the National Football Museum, alongside Hurst's hat-trick shirt and other objects from the final. The museum marks the anniversary on Thursday 30 July with a programme of talks from its Visitor Experience team on the 1966 tournament and the final itself.
Dr Matthew Lawson, who performed the scans in the NXCT, said: "X-rays are a fantastic tool to non-destructively see inside objects, this technique has been used a lot in cultural heritage previously but never to look inside such a nationally significant football!
"Although a football is mostly air on the inside, we were able to see the makeup of the leather panels, the stitching and the perished air bladder in amazing detail thanks to X-ray computed tomography. Everyone at the NXCT in the University of Manchester would like to thank the National Football Museum for this exciting opportunity to scan such an artefact and to hold it in our own hands!"
Tim Desmond, CEO of the National Football Museum, said: "This is the most famous football in the country and, until now, nobody had ever properly looked inside it. What the scans give us is a window into how the game was made in 1966, the materials, the methods, the craft of a ball stitched by hand in a Yorkshire factory. It's also a measure of just how far the technology has travelled to reach the Trionda of 2026.
"We're a museum committed to educating ourselves and others, and to translating objects behind glass into stories people can get inside. As such, my thanks go to the University of Manchester for their expertise and curiosity that have created such a brilliant insight for our visitors and beyond. If you haven't seen it already, come and witness a slice of history for yourself."