Rewinding back even further in time, let us point our compass overseas to Athens, Greece near the end of the 19th century. Olympic games were taking place and different countries needed a way to uniquely identify themselves, so each country had a different color on a disc made of cardboard. Over time, distributing, actually wearing, and trading pins eventually evolved into the trend that we still know today.
Thanks for helping me understand the history of baseball trading bins. I didn’t know that organizers had to decrease production of trading pins so that they could maintain exclusivity. I’m kind of interested to learn how many pins are generally made or if it depends on the event.