I think this is a great insert from Golden Age, they are USA Stamps.I think they even peel off, but I don't plan on doing that to them.
Framed parallels from Gypsy Queen including a numbered Buster Posey version.
Up next, die-cuts! My first ever Luminous.
Those are followed by my first Castro Yankees card.
And finishing it up, some numbered gold parallels and a First Pitch of Selig.
Well, this was only some of the baseball inserts. But, there were plenty of others hidden within.