Kautilya's Arthashastra 2.19.11

2.19.11

ṣaḍaṅgulād ūrdhvam aṣṭāṅgulottarā daśa tulāḥ kārayet lohapalād ūrdhvam ekapalottarāḥ, yantram ubhayataḥśikyaṃ vā //

Beginning with a lever of six angulas in length and of one pala in the weight of its metallic mass, there shall be made ten (different) balances with levers successively increasing by one pala in the weight of their metallic masses, and by eight angulas in their length. A scale-pan shall be attached to each of them on one or both sides.