Of all the clubs in the USGA's possession, none was more intriguing than Ben Hogan's 1-iron. To refresh memory, Hogan's club was stolen at the 1950 Open at Merion, sometime after the great man had used it for his approach shot on the 72nd hole, the subject of Hy Peskin's iconic photograph taken from behind Hogan on his follow-through. The 1-iron remained missing until a collector found it and sent the club to Mr. Hogan in 1983. Hogan did a thorough inspection of the implement, focusing on the positioning of the cord-grip trademark and the wear pattern on the clubface, a sweet spot about the size of a quarter, close to the heel. Even though he'd not seen the club for more than 30 years, Hogan pronounced it to be the club, and, shortly thereafter, he sent it to the USGA Museum for display. It immediately became one of the main visitor attractions.