Sold. This item has been sold.
1.25". Reverse has union bug imprint. "Roller Derby" events go back to the 1920s but the sport was a 1930s concept of Leo Seltzer. Post-war popularity aided by television led to formation of National Roller Derby League in 1945 and season play-offs sold out Madison Square Garden for a week. Hake book Collectible Pin-Back Buttons photo example Roller Skating Section #624. Comes with Hake's COA. Tiny microscopic wear, displays Mint. Only example known to us. Rare.