Vintage Signed DFB Co Carmen Expansion Stretch Bracelet Mourning Jewelry Black Glass 1920s 1930s Made In retailer USA

Vintage Signed DFB Company Carmen Expansion Bracelet. Also stamped Made In The USA inside. Expansion or stretch bracelet. The band is 1/2" wide by 6.5-7" expanded. The head of the bracelet is a 5/8" diameter black glass center stone. That is surrounded by a gold tone finish band. See pics. The total diameter of the head is 1". Mourning jewelry piece. The center stone has a worn retailer area on the black stone's bevel from wear. Every other link of the band has a design in it.