You're absolutely right. The wording is ambiguous and for good reason. We all poke fun at that ambiguity on relic cards, because it is, quite frankly, ridiculous that a company can't provide proof where something came from. Sure, that jersey piece could've come from Kelvin Torve and used in a game at Shea Stadium on a night when Tom Seaver's greatest highlights were shown on the Mitsubishi Diamond Vision screen in left center......
Collecting Josh Thole, Gary Carter, Mets and SK cards
Looking for Thole superfractors and Sterling purples, any Carter SK cards