·Direct
Cinyras gave Agamemnon a breastplate of cyanus, gold, and tin, ornamented with six rearing cyanus serpents like rainbows.
See evidence text
“the breastplate which Cinyras had once given him as a guest-gift. It had been noised abroad as far as Cyprus that the Achaeans were about to sail for Troy, and therefore he gave it to the king. It had ten courses of dark cyanus, twelve of gold, and ten of tin. There were serpents of cyanus that reared themselves up towards the neck, three upon either side, like the rainbows which the son of Saturn has set in heaven as a sign to mortal men”