IRAN: Mohammad Reza Pahlavi, 1941-1979, AV 1000 rials, SH1350/1971, KM-1191.1, Fr-107, AGW 0.3770, 2500th Anniversary of the Persian Empire - Ruins at Persepolis, variety with polished field under palace, Choice Proof. It appears that the variety with polished field below the ruins is scarcer than that which has a matte finish.
Estimate: 550-650 USD