Kautilya's Arthashastra 2.12.23

2.12.23

lohādhyakṣas tāmrasīsatrapuvaikṛntakārakūṭavṛttakaṃsa.tālalohakarmāntān kārayet, lohabhāṇḍavyavahāraṃ ca //KAZ02.12.24/ lakṣaṇādhyakṣaś caturbhāgatāmraṃ rūpyarūpaṃ tīkṣṇatrapusīsāñjanānām anyatamamāṣabījayuktaṃ kārayet - paṇam ardhapaṇaṃ pādam, aṣṭabhāgam iti, pādājīvaṃ tāmrarūpaṃ - māṣakam ardhamāṣakaṃ kākaṇīm
ardhakākaṇīm iti //

The superintendent of metals (lóhádhyakshah) shall carry on the manufacture of copper, lead, tin, vaikrintaka (mercury [?]), árakúta (brass), vritta(?); kamsa (bronze or bell-metal), tála (sulphurate of arsenic), and lodhra (?), and also of commodities (bhánda) from them.

The superintendent of mint (lakshnádhyakshah), shall carry on the manufacture of silver coins (rúpyarúpa) made up of four parts of copper and one-sixteenth part (másha) of any one of the metals, tikshna, trapu, sisa, and anjana. There shall be a pana, half a pana, a quarter and one-eighth.

Copper coins (támrarúpa) made up of four parts of an alloy (pádajívam), shall be a máshaka, half a máshaka, kákani and half a kákani.