Why the difference is price for signed vs autographed sports memorabilia?
Any sports memorabilia that is legit will come with a verification license signed by an agency that versifies autographs and the authenticity of items. Companies that sell "licensed" products and memorabilia must provide this authenticity with the product they are selling. If you are looking to purchase sporting good memorabilia
There is no record of the owner of the most autographed sports jerseys, primarily since these items are mass-autographed by many players and sold by dealers and retailers on a daily basis. It is entirely possible that a retailer such as Sports Memorabilia technically owns the most of these items, as they keep quantities in stock for sale at all times.