Large 32mm antique Victorian Czech 2 part brass mounted reverse geometric pink metallic painted glass button

Large 32mm antique Czech 2 part brass mounted reverse geometric metallic painted glass button. With a brass metal mount and inset reverse metallic hand painted clear glass flat domed cabochon. These were produced by the Gebruder Mahla export company of Jablonec, Czechoslovakia and similar examples are in the glass museum in Jablonec.
For collecting, making jewelry, fashion design, sewing, art and crafting.
Origin: Northern Bohemia circa 1900's
Size: 32mm; 1.25" approx 
Material: Glass. Metal
Shank: Metal loop