AI Appraisal Estimate

This is a United Kingdom one penny coin dated 1991. The obverse features the third decimal portrait of Queen Elizabeth II, designed by Raphael Maklouf, facing right and wearing the George IV State Diadem. The inscription encircling the rim reads 'ELIZABETH II D G REG F D 1991'. This specific issue is composed of copper-plated steel, which was introduced in 1992 but began production in late 1991 (though 1991 dated pennies also exist in bronze; a magnet test would differentiate the two). The coin has a diameter of 20.32 mm and a plain edge. Regarding condition, the coin shows significant signs of circulation and environmental wear. There is visible surface pitting and dark spots of oxidation or 'copper rot' appearing on the Queen's profile and in the fields of the coin. The relief remains relatively sharp, but the overall luster has been lost to a dull, weathered patina. There are several small nicks and scratches consistent with extensive use in commerce. The bead-like border around the rim is still mostly intact but shows wear at the upper-left quadrant.

I have examined the 1991 British One Penny coin via the provided description and visual data. The coin features the Raphael Maklouf portrait of Elizabeth II and, based on the description of surface oxidation and pitting, appears to be the copper-plated steel variant. While the relief remains identifiable, the condition is categorized as 'Circulated/Damaged' due to 'copper rot' and significant environmental wear. In numismatics, condition is the primary driver of value; unfortunately, the presence of oxidation and nicks significantly reduces its appeal to collectors. From a market perspective, the 1991 Penny was minted in massive quantities (over 206 million for the bronze variant alone), making it a 'common' date with no inherent rarity. While the transition from bronze to copper-plated steel in 1991 provides a minor technical interest for variety collectors, an example in this heavily weathered state holds no premium above its face value or nominal bulk value. Comparable specimens in 'Uncirculated' condition typically struggle to exceed $1.00 in the secondary market. Limitations: My assessment is based on visual examination. Without a physical magnet test, I cannot definitively confirm if this is the bronze or copper-plated steel composition. Furthermore, I cannot verify the coin's weight to 2 decimal places to rule out contemporary counterfeits, though such a risk is low for this denomination. For a final authentication, a physical inspection to check for 'PVC damage' versus 'copper rot' would be necessary to determine if the degradation can be stabilized.