The same cheeky face would be gracing the covers of magazines across the world only several years later. Sir Paul McCartney appears in a previously unseen 1952 picture of him with his young classmates from the Joseph Williams School in Liverpool. The musician is pictured wearing a black cap and studying a comic as the photographer snaps away - with everyone blissfully unaware the youngster would go on to become one of rock and roll's biggest figures. The photograph will be auctioned along with hundreds of other items of Beatles memorabilia Saturday August 29 in Liverpool. Among the items for auction is another picture of Sir Paul - with wife Linda - posing on a pair of customised Shimano mountain bikes.