Rare white-metal salver inscribed Manchester United F.A. Cup Finalists 1979

Rare white-metal salver inscribed Manchester United Centenary 1878-1978 F.A. Cup Finalists 1979,  F.A. Cup Winners 1909-1948-1963-1977” inscribed with facsimile player autographs, Martin Buchan, David McCreery- Steve Coppell, Joe Jordon, Jimmy Nicholl, Ritchie, Arthur Albiston, Mike Duxbury,Gary Bailey, Jimmy Greenhoff, Stewart Houston, Andy Ritchie, Grimes, Lou Macari, Pearson, Sammy McIlroy, Dave Sexton-Manager, Tommy Cavanagh-Trainer, 10in wide