Antique 10K Yellow Gold & Enamel Championship Ball Charm from 1925

This listing is for an Antique 10K Yellow Gold &amp; Enamel Championship Ball Charm<br>This charm is in the shape of a round ball (it appears hallow) which has the stitching like the football has where the fingers go, but lines almost like a basketball, so we're not sure what sport this represents<br>The charm features "RP" in red &amp; white enamel; the rest of the ball is marked "Delco Champs" and "'25" and "J Banzhof Coach"<br>The ball is also marked "10K"<br>This charm weighs 4.5 grams<br>This is a really cool antique piece from 1925. The enamel on the RP is worn, and we cannot identify which school or sport this is for - possibly football? Some wear/tarnishing &amp; scratches. Please view all pictures &amp; please message with questions. Thank you!<br>Haddonfieldartgallery<br>Recently “picked” from the Greater Philadelphia area, we<br>personally hand-select each antique, piece of art, jewelry or any other item of<br>interest. We specialize in art work, watches, jewelry, silver, gold and coins.<br>We like to keep each item in