His suggestion means that thousands of items of highly-prized personalised items could be regarded as technically forged � and the only name fans can be certain over is that of drummer Charlie Watts.

Wyman, who left the band in 1993, tells Rolling Stone: "There's footage of us signing things in dressing rooms. There were stacks and stacks of books, programmes to be signed, and we just used to grab a bunch each and sign everybody's name.

"We all learned to sign each others' signatures � except for Charlie. He wouldn't sign anything. But me, Keith, Mick and Brian could all sign each others' autographs.