Lot (6) 13mm vintage Czech geometric white glass buttons with applied black coloration. 
Super examples of mid C20th century Century glass button making. 
For sewing, fashion design or crafting.

Size: 13mm 8/16th inch
Material: Vintage glass. 
Shank: self shank
Origin: N. Bohemia / Czech
Year: Vintage cca. 1930's
Condition: Original authentic vintage condition. 
Quantity: 6