United States Lincoln Cent Mint Error - Blank Planchets and Uniface Strike

This set consists of three United States Lincoln one-cent coins representing different stages of the minting process and error types. The first and second items are Type 2 blank planchets, exhibiting the raised upset rim characteristic of blanks that have passed through the Type 2 upsetting mill but have not yet been struck by dies. They feature the standard 19.05mm diameter and a copper-based composition, with a natural reddish-brown patina and minor surface oxidation. The third item is a uniface error, where the obverse has been struck with the bust of Abraham Lincoln, but the reverse remained blank. This typically occurs when two planchets enter the collar together, resulting in each receiving only one side's impression. The struck side displays a clear, well-defined portrait of Lincoln 'In God We Trust,' 'Liberty,' and a partially visible date which appears to be from the 1970s or 1980s. The surfaces show moderate handling wear and typical circulation toning. The blank planchets are smooth with a slight granular texture. Overall, the pieces represent a fascinating numismatic error sequence, demonstrating high-quality US Mint production standards alongside mechanical anomalies.