Coral necklace with handcrafted interchangeable clasp

2-row necklace of coral beads 5.5 mm, L: 50 cm, with handcrafted bayonet ends and clasp of 21.6K yellow gold, catches and pins of 18K yellow gold, clasp with 3 catches for different varieties of wearing, D: 2.4 cm, 12.1 g, both sides wearable 1x konvex and 1x konkav with spiral, 20th/21st century, minor signs of wear, with unknown maker's marks 'K' and 'UK'. NO SHIPPING OUTSIDE THE EU.