Mystic Rings Antique Silver 7/8" Shank Back Metal Button, Italy, 23mm # FJ-62
A subtle uneven surface seems inspired by clay. Barely any shine. Shank opening is around 3mm. Lead free zinc alloy button from Italy. $1.40 each. These are no longer being made so we won't be able to re-order.
Also available in 3/4" size in another listing.