Bird Bead, Pewter, Tiny Greek Birdie 13mm / 1/2" Pack of 4 Beads #L-119
Each primitive-look birdie has a swirl when looking left, and 3 slashes when looking right, so both sides are usable and different. This is a bead, not a button, they're pewter with a bit of shine and variance, from Greece. Flock of four charming birds.
