The signature goes into the border, which would be odd, I think, for a printed signature. Also, the ink on the signature is lighter in the white areas at the border,which suggests it was placed over the white space underneath. It might mean a later overprint of a printed signature but that would be odd in the printing process. The absence of yellow in certain parts of the signature and around the edges of the signature could be a function of the effect of live ink on the original colored printing surface, but I think that's a reach. Silly (probably stupid, actually) question: are there other unsigned versions of this card out there (Registry, etc.)? Seems like an easy way to tell. Edited: here --->
https://www.psacard.com/cardfacts/ba...goss-598/28426