Small clear glass ball button, with a molded circle of rings highlighted with gold lustre, and embellished with tiny dots of turquoise glass. Metal loop shank is inserted directly into the glass. From some angles it looks as if there is a line - I’m not sure if this is where two halves were joined or possibly a hairline crack - see last photo. Still a very pretty button.

Size 9/16” (1.4 cm)