TABARISTAN: 'Umar, 771-780, AR ½ drachm (2.23g), Tabaristan, PYE129, A-56, Gys-b (p. 186), contemporary copper imitation of the silver half drachm, perhaps an unofficial product of the government mint, intended to be silver-plated and passed as a silver coin, VF.
Estimate: 80- 100 USD