SIKH EMPIRE: AE ¼ anna (7.09g), Amritsar, VS[18]96, KM-5, Herrli-01.31.11, pa anna nanakshahi type, legends in Persian, VF, R. Herrli divided these into a paisa (=¼ anna) and half paisa (11-12g, and 5.5g, respectively), but all coins are inscribed pa anna for ¼ anna, and all weigh in the range of 6.5g to 8.2g; thus there is only one denomination for this type.
Estimate: 150- 200 USD