Racing plate worn by Arkle when winning the 1964 Irish Grand National

Racing plate worn by Arkle when winning the 1964 Irish Grand National,
set on a white-painted metal-lined hollow wooden stand inscribed ARKLE, the wooden rim inscribed IRISH GRAND NATIONAL, 1964, sold with a signed letter of authenticity from Arkle's groom Johnny Lumley reading THIS SHOE WAS WORN BY ARKLE IN THE 1964 IRISH GRAND NATIONAL AT FAIRYHOUSE. I GAVE THIS SHOE TO MR DAVID DOYLE AS A MEMENTO, JOHNNY LUMLEY, ARKLE GROOM