SIKH EMPIRE: AR rupee (11.21g), Amritsar, VS1840, KM-A20.1a, Herrli-01.04.04, one of the rarest dates of the Amritsar mint, sometimes known as the Dar Khalsa type, bold strike, nearly EF, RR. A similar example sold at Stephen Album Auction 26, Lot 1975, for $850.
Estimate: 300-400 USD