If you’ve not ever seen a pre-war pin in person, you might be surprised by the size of many of them. Many issues like the P2 Sweet Caporal pins and the PM8 Our National Game pins are diminutive, measuring less than 1″ in diameter.
Some, such as the PM6 Baseball Player Pins, measure less than 1/2″ in diameter. At that size, they look more like an oversized button on a shirt than a pin by today’s standards. Many of these are smaller in hand than you might expect.
When looking to purchase pins, a key factor is the inclusion of the pinback or cardboard insert that many pins had. The inserts often had things printed on them, such as the manufacturer name, an advertisement, etc. Pins that originally included those are more valuable if they remain intact.
Pins may be referred to as any number of names, including pins, pinbacks, or buttons.
Collectors should note that many more pins, even in the pre-war era, exist. This site has cataloged known sets that were included in the American Card Catalog and also uncataloged sets for a particular sponsor as well as individual pins of players running for election or those mentioning a special day honoring a player. Other unsponsored pins featuring individuals or teams have not been included here.