Re-Stocked, Rustic Roundish Copper-White 9/16"-5/8" Mottled, Rimmed Smaller Size Shank Button #SWC-92
Antique, primitive handmade look; the center scoops in slightly and neither of its circles are perfectly circular, as you can see. The outer rim and the center are matte, chalky white - no cast of green or red. Reddish copper, slightly shiny highlights and scratches. It's between 9/16" and 5/8" in diameter, with a shank loop opening around 2.5mm. Sold per button.
The larger, 7/8" size is #SWC-98