Darkest Blue Vintage Glass Buttons, 3/8" Shank Back
Sleek and shiny, opaque vintage West German glass buttons that are darkest blue, almost black. They call this color and type of glass AB, as in Aurora Borealis. They have black-purple-blue sheen and glow in different lights. Vintage, in perfect, unused condition. Shank back. Round 10mm -- 3/8" diameter. 1/2" thick including shank.