Question about Rick Barry J.D. McCarthy postcards
 

I’m interested in picking up Rick Barry’s first pre-rookie issue, and I believe he has 3 J.D. McCarthy postcards. I’ve seen a wide range of years associated with these. Is one of the 3 known to have been issued first? Along the same lines, is one of the 3 considered more valuable than the others? I know a mailing stamp is one way to definitively nail down a date, but I’d like to get Barry’s first issue if it’s possible to figure out.

Can you tell by the team?

He has 2 McCarthy postcards with the SF Warriors and one with the Oakland Oaks. He played for the Warriors first, so that would seem to narrow it down by one.

Uniforms the same?

They’re different:

https://www.tcdb.com/Person.cfm/pid/...tName=&sBrand=

That doesn’t necessarily mean one was issued before the other. Look at the ‘68 Topps Test set. Some of the images are several years old. Hopefully I can get some clarity on this (if possible) so I can pursue the correct one.

1966 date stamp on one of them? That's pretty early.