- Most Expensive Piece of Football Memorabilia: “The Rules, Regulations, & Laws of the Sheffield Foot-Ball Club”
Price: £881,250 ($1,376,645) - Most Expensive Piece of American Football Memorabilia: Oilers Helmet Signed by Bum Phillips
Price: $2,000,000 - Most Expensive Piece of Baseball Memorabilia: 1920 Babe Ruth Game-Worn Jersey
Price: $4,415,658 - Most Expensive Piece of Basketball Memorabilia: James Naismith’s Original Rules of Basketball
Price: $4,338,500 - Most Expensive Piece of Rugby Memorabilia: Broadley Medal Collection
Price: £5,280 ($8,216) - Most Expensive Piece of (Ice) Hockey Memorabilia: Paul Henderson’s 1972 Summit Series Jersey
Price: $1,275,707 - Most Expensive Piece of Olympic Memorabilia: Jesse Owens’s 1936 Olympics Gold Medal
Price: $1,466,574 - Most Expensive Piece of Tennis Memorabilia: Proximus Diamond Games Trophy
Price: $1,500,000 - Most Expensive Piece of Cricket Memorabilia: Samuel Britcher Scorecards
Price: £324,000 ($504,257) - Most Expensive Piece of Golf Memorabilia: Bobby Jones’s 1937 Green Jacket
Price: $310,700 - Most Expensive Piece of Boxing Memorabilia: Muhammad Ali’s Religious Exemption Letter
Price: $334,600
Source : http://risingwithanewera.blogspot.com/2017/02/11-most-expensive-items-in-world-sports.html