I have 6 Cardinal autographs that were done in person at a local card show. I do not have a certificate of authenticity because they were done in person. You can take my word, but that is all I have to offer. These cards with autographs are:

95 Fleer John Mabry (502)
91 Upper Deck Omar Olivares (463)
88 Donruss Tom Pagnozzi (577)
89 Topps Tom Pagnozzi (208)
83 Donruss Bob Forsch (64)
85 Topps Danny Cox (499)

P.S. If anyone knows how I can get a COA, let me know.