The back on the rim looks to read Phelps Pantent May 10 1899. The company went out of business in 1903. The pinback is 1/4 inches round. The item "Black African American Negro Chicago Photo Button and Badge Co Pinback" is in sale since Friday, June 12, 2015. This item is in the category "Collectibles\Pinbacks, Bobbles, Lunchboxes\Pinbacks\Other Collectible Pinbacks".
The seller is "rmarlowe" and is located in Berkeley, California. This item can be shipped worldwide.