Spain
Charles II 4 Reales 1683 (Aqueduct)-B/R MS63 NGC, Segovia mint, KM200, Cal-543. Three Arches / No Dots at Mintmark variety. Fully detailed, with instances of graphite and russet tone over both sides and noticeable underlying gleam. Seemingly mark-free with close inspection revealing some evidence of past handling that blends into the reverse and accounts for the grade. A rarely seen denomination at the Mint State grade.
Estimate: 1000-1500 USD