United States coin with edge anomaly

The provided image displays a metallic circular object being held between fingers, showing its edge and a portion of one side. The physical characteristics include a silvery, metallic appearance with discernible wear, oxidation, and toning across its surfaces. Along the curved edge, there is a visible reeded or grooved pattern, and the owner notes that the middle portion of the edge appears missing or recessed, running continuously around the piece. Faint lettering reading 'STATES OF' is partially legible near the rim, suggesting a United States coinage origin. The owner's supplied context indicates the category as a coin with a unique rim anomaly, though this remains unauthenticated and unverified through physical inspection. The item displays signs of circulation wear, including minor scuffs, tarnish, and accumulated dirt within the recessed areas. Manufacturing details such as exact denomination, year, and mint mark are not clearly readable from this angled photographic perspective. The visual evidence is consistent with a modern or vintage United States coin that has undergone either a mint error (such as a split planchet or lamination fault) or post-mint alteration. Because the image lacks a full view of both faces and a direct assessment of weight or composition, any specific identification as a mint error coin remains a hypothesis. The attribution relies entirely on the partial lettering visible on the face. Further professional numismatic examination would be required to determine the true nature of the edge feature and whether the item is a genuine error or an altered piece.

Based on the provided photograph, I can observe a metallic circular item held in hand, displaying partial lettering consistent with 'STATES OF' along the border and a noticeable groove or missing section running centrally along the reeded edge. The owner states that 'the rim is missing the middle around the whole thing.' From an image alone, I cannot establish the exact denomination, date, mint mark, or metallic alloy, nor can I verify whether this anomaly occurred during the minting process (such as a split planchet or unusual lamination defect) or resulted from post-mint alteration, such as mechanical grooving or being hollowed out to create a 'magician's coin.' A physical inspection by a numismatic specialist, including precise weight, diameter, and edge examination under magnification, would be necessary to determine the cause of the anomaly. If this piece represents a genuine mint-produced error, collectors of unusual numismatic anomalies typically pay between $25 and $75, depending on the specific type of error and the underlying coin type. However, if physical examination reveals that the edge anomaly is post-mint damage or an altered novelty coin, its commercial value would be negligible, generally under $5 or limited to face value or metal scrap. Market demand for certified mint errors remains steady, while altered coins carry virtually no collector premium.