If you look at this page from Adam W
Link, it looks like the Ty Cobb strip card, that he identifies as a strip card made from the same art as the 4-1 Exhibits.
The bottom cut postcard is definitely from a 4-1 Exhibits postcard. You can see some of these here:
Link that sold in a Legendary auction a while back. (One thing to note is that the partial set from the Legendary are postcard back, while the partial postcard that Val has looks like it's blank back. Therefore, it's possible that the blue tinted cards were cut from a blank back also.)