Kautilya's Arthashastra 4.2.15

4.2.15

kāṣṭhalohamaṇimayaṃ rajjucarmamṛṇmayaṃ sūtravalkaromamayaṃ vā jātyam ity ajātyaṃ vikrayādhānaṃ nayato mūlyāṣṭaguṇo daṇḍaḥ //

The sale or mortgage of articles such as timber, iron, brilliant stones, ropes, skins, earthenware, threads, fibrous garments, and woollen clothes as superior though they are really inferior shall be punished with a fine of 8 times the value of the articles thus sold.