Spain
Philip III 50 Reales 1618/7 Aqueduct-A UNC Details (Scratches) NGC, Segovia mint, Cal-80, KM65. Aqueduct mintmark for Segovia, with A (with cross) assayer. 73.15mm/172.30g. No mintage records are currently known for this date, yet it is undoubtedly rare, with less than 20 confirmed examples including those in public holdings.
This is a superb Cincuentin with superb features that are rarely seen on the type. Scratches that are barely visible along the cross on the reverse prevent this 50 Reales from a mint state grade.
Estimate: 50000-60000 USD