On Chowries (cāmara-lakṣaṇa) - Verse 4

The beam or the shaft or the handle, as the case may be, of the lute, the umbrella, the elephant driver’s hook, the cane, the bow, the canopy, shall be yellow, red, of the colour of the honey, and black in the case of the Brāhmaṇas , Kṣatriyas , Vaiśyas and Śūdras respectively.