Circulated 1988 Mexican 500 Peso coin-style object

This item is a circular coin-style object that appears to be stylistically consistent with the Mexican 500 Pesos currency minted in the late 1980s. The obverse shown features a right-facing bust of Francisco I. Madero. Visible inscriptions include the year '1988', the name 'Madero', a denomination of '$500', and a mint mark comprising an 'o' over an 'M', which is consistent with the mark for the Casa de Moneda de México (Mexico City Mint). The piece exhibits a silvery metallic luster, suggesting a composition likely consistent with cupro-nickel or a similar base metal alloy typical for high-denomination circulation coinage of that era in Mexico. The outer edge features a repeating decorative border pattern. Condition-wise, the item shows signs of circulation including surface scratches, minor dings on the rim, and subtle tarnish or patina consistent with age. Identification as a government-issued currency piece is a hypothesis based on surface markings; physical parameters like weight, diameter, and edge reeding would require in-person verification to distinguish it from potential replicas or tokens.

Based on the provided image, I have examined this circular coin-style object which bears markings consistent with a Mexican 500 Pesos piece dated 1988. From what I can see, the obverse displays a bust of Francisco I. Madero and the 'oM' mint mark characteristic of the Mexico City Mint. The piece appears to be composed of a base metal alloy, likely cupro-nickel, though I cannot verify the specific metallic composition or weight without a physical inspection. The surface shows minor scratches and rim dings typical of a circulated item. My valuation is based on the hypothesis that this is a government-issued circulation coin from Mexico's pre-1993 monetary system. Because these coins were produced in very high mintage numbers and were later demonetized following the introduction of the 'Nuevo Peso,' they generally hold very little numismatic premium in circulated condition. Market demand for this specific type is generally low, as they are common among collectors of world base-metal coinage. The estimated value reflects what similar 1980s-era Mexican high-denomination coins typically command in hobbyist markets. However, I must note that my assessment is based solely on visual evidence; I cannot confirm the piece is not a contemporary token or replica. To establish a more firm standing, an in-person examination would be required to verify the weight (typically 12.5 grams), diameter (28.5mm), and edge reeding. If the item were found to be a modern reproduction or play money rather than the hypothesized currency issue, its market value would be negligible. Conversely, only an exceptionally well-preserved, uncirculated specimen would exceed the provided range.