Set of 2 exclusive floral bayonet interchangeable clasps,

Set of 2 exclusives floral bayonet changing clasps, of which 1x hand chased made of 21.6K yellow gold, with additional loop made of 18K yellow gold, 19.8 g, 5x4.5 cm, and 1x quartz cluster with fine red tourmaline, round faceted D: 9 mm in high setting made of 18K yellow gold, 32.6 g, 4.5x4.1 cm, with choker made of grey rubber with ends of 18K yellow gold, L: ca. 50 cm, 20th/21st century, very good condition, marked H. Jaufmann (Augsburg), very nice craftsmanship.