https://www.mlb.com/cut4/the-metropolitan-museum-of-art-has-an-amazing-baseball-card-collection
One of the world’s largest baseball card collections is hidden among
the priceless and timeless works of art found at the Metropolitan Museum
of Art. So, why does the baseball card -- that lowly cardboard image
that was once designed to entice children to buy bubblegum -- get a spot
next to ancient artifacts, Renaissance paintings and modern sculptures
inside one of the world’s finest art museums? You can thank one
man: Jefferson R. Burdick, known as one of the forefathers of baseball
card collecting.