These gorgeous Intaglios are in a variety of condition with the black being perfect and 2 others needing repair restoration. They were manufactured in the 1940-50's in Western Germany or Czechoslavakia. They are rectangular and the black have a coach and horses scene and one depicts a wagon and finally a knight on a horse.
They are glass cabochons containing intaglio images or scenes and were made C'1950's. Each piece was hand-painted into a reverse carved image. Because they are so intricate it would be difficult to manufacture them today as costs would be prohibitive. As a result, these crystals have become sought after rarities and historical treasures.