Watch List notes:

ITALY. Papal States. Nicolas V (Tommaso Parentucelli), 1447-1455. Ducato (Gold, 22 mm, 3.53 g, 2 h), Rome. •+ NICOLAVS • - • P P QVINTVS• Papal tiara above shield bearing the Parentucelli arms; all within quatrefoil. Rev. •+• S PETRVS • - • ALMA ROMA• St. Peter standing facing in quatrefoil. Berman 326. CNI 3. Muntoni 4. Clear and nicely toned. Nearly extremely fine.
From the Dr. Pelc Dens Sapientiae Collection, and that of W. R. Windsor, Jackson's, Cedar Falls, Iowa, 19 March 2002, 1054.

Nicolas V is considered to be the first Pope of the Renaissance.