Sports Pix

[doganabeer]

I'm new to the board, looking for solid info on the 1960's baseball Sports Pix out of Washington, DC. I bought an envelope recently containing an original order form, and about 10 photos (Mantle, Maris, Ruth, DiMaggio (lightly signed in pencil), Koufax, Mays, and others. The photos are printed/copied onto light paper stock, not the heavy paper stock that most 8x10's are printed on. The envelope is from the 1960's so it doesn't look like the photos were recently photocopied.
I'm not looking to sell, but to gain knowledge.
How do I know if I have the larger or smaller versions?
Are these valuable?
Should I send any of them to PSA to be graded?
If you want to send me a private message with your email address, I'll find a way to email you photos of the order form that was also in the package and a list of the photos I have.
Again, not looking to sell or trade at this time. Thanks for any help provided.