It is being described as “world-famous” and the most valuable object to be discovered by the show, beating the previous find in 2008 of a model of Antony Gormley’s, Angel of the North statue – valued at £1m.
A spokesperson for the Antiques Roadshow said:
An item seen at the Antiques Roadshow in Harrogate is the highest valued object ever to appear on the show in its 38-year history.
It is a world-famous piece owned by a sporting institution.
The final valuation given will be revealed when the programme airs in Spring 2016.