Mexico City, Mexico, pillar 1 real, Philip V, 1733MF, mintmark M.X. KM-75.1; CT-1591. 3.13 grams. Fine with faint toning around details, crude shield (mount removed?), listed as common in Yonaka (#M1-33d) but considered rare as a one-year type with M.X mintmark.
Estimate: $125-200