Home / Big Time Bats / Autographed Rare Negro League Cowan Hyde Authenticated Postcard Autographed Rare Negro League Cowan Hyde Authenticated Postcard$295.95 Autographed Rare Negro League Cowan Hyde Authenticated Postcard quantity — OR — Add to cart Description Description This is a postcard from a series sold by the Negro League Museum “slabbed” and authenticated. Vintage post cards have become rare and are a great collectible. Related products Brandon Crawford Most Games at SS in Franchise History Chrome Bat Boston Strong Silver Chrome Baseball Blue Jays Chrome Authentic Rawlings Replica Batting Helmet 1967 Impossible Dream Red Sox Two Tone Bat