AI Appraisal Estimate

This is a United States one-cent coin, commonly known as a penny, dated 2013 with no mint mark, indicating it was produced at the Philadelphia Mint. The obverse features the iconic profile portrait of Abraham Lincoln, first designed by Victor David Brenner in 1909. Compositionally, this modern specimen consists of a copper-plated zinc core (97.5% zinc and 2.5% copper). Physically, it measures 19.05 mm in diameter and weighs 2.5 grams. The surface shows significant circulated wear, characterized by a darkened, uneven brownish patina and visible oxidation spots, particularly a greenish-white corrosion mark on Lincoln's chest area and darkening around the peripheral inscriptions. There is evidence of minor surface scratching and rim dings consistent with general circulation. The inscriptions 'IN GOD WE TRUST', 'LIBERTY', and the date '2013' remain legible despite the surface contamination. The strike appears standard for a business strike of the era, though the heavy toning and environmental damage obscure some of the finer hair and facial details of the sculpture.

I have completed a visual examination of the 2013 Lincoln Shield Cent (Philadelphia Mint). The specimen is a standard business strike composed of copper-plated zinc. My assessment reveals a coin in poor numismatic condition due to significant environmental damage. The obverse displays heavy oxidation, most notably the greenish-white corrosion on Lincoln’s chest, which indicates a breach in the copper plating and subsequent zinc rot. Such corrosion is irreversible and fundamentally compromises the coin's structural integrity and aesthetic appeal. In the current market, 2013 cents were minted in the billions (over 3.6 billion in Philadelphia alone), making this a common date with no inherent rarity. While some high-grade MS-67 or MS-68 specimens can command premium prices at auction, this specific coin shows circulated wear and surface contamination that precludes it from any numismatic premium. Regarding authenticity, the design elements and typography appear consistent with United States Mint standards of the period; however, a digital image cannot verify weight to the milligram or the metallic density of the core. A physical inspection would be required to confirm the absence of 'struck-through' errors often sought by collectors, though the existing corrosion likely obscures any such potential value. Due to the lack of rarity, significant environmental damage, and high mintage, the fair market value is limited to its legal tender face value. No further scientific testing or provenance documentation is recommended as the costs would far exceed the asset's value.