gracecollector
Well-known member
Except when the checklist is incomplete
Well, any checklist is going to be open to debate as to what is complete. Different people consider different things accepted items (i.e. Broder cards, stat cards, unlicensed cards, etc.) However, there are generally accepted checklists in the hobby, including PSA registery, Beckett checklist, or Standard Catalog lists. These are well defined and allow collectors to compare "completeness." Game used memorabilia has no such comparison.