Art Deco Bohemian lapis glass rectangular geometric stone 16x12mm Pkg of 2. b5-730

Art Deco Bohemian lapis glass rectangular 2 sided stone. The design is repeated on the back but is much flatter than the front, which has much higher dimension. The back has the 4 design grooves but lies flat. 16x12mm. 1920-30s. Package of 2