AI Appraisal Estimate

This appears to be a small, circular metal coin, which, as marked, is from the Republic of Costa Rica with a double-dated year of 1953. The obverse side displays the national coat of arms of Costa Rica, featuring three volcanoes, two ships at sea, and several stars within a shield-like frame. The text around the perimeter is stamped 'REPUBLICA DE COSTA RICA' at the top and '1953' at the bottom. The material is visually consistent with a base metal alloy, possibly stainless steel or cupro-nickel, though this cannot be confirmed without physical testing. The surface shows notable signs of wear and age, including minor nicks, surface scratches, and a yellowish-brown patina or localized oxidation around the central design elements. The edge appears to have a raised rim. This design is stylistically consistent with Costa Rican currency circulation from the mid-20th century. While the markings are clearly legible, please note that numismatic items can only be formally attributed through in-person weight, diameter, and composition testing, as well as expert verification to rule out contemporary counterfeits or later reproductions.

Based on the provided imagery, I have reviewed this circular coin which bears markings consistent with the 1953 coinage of the Republic of Costa Rica. The obverse displays the national coat of arms, a design hallmark of the period's 5 or 10 centimos denominations. Based on what I can see, the coin appears to be struck in a base metal, likely stainless steel, and shows signs of significant circulation, including surface scratches and a dark patina that suggests moderate wear. I cannot determine the exact denomination or weight from a photo alone, nor can I verify the metal composition without physical testing. The value estimate is reflective of a common-date circulated survivor of this era; however, numismatic value is highly sensitive to grade and variety. The current estimate assumes the piece is a legitimate government issue from the mid-20th century. If physical inspection were to reveal this as a modern reproduction or a contemporary counterfeit, the value would be negligible. Conversely, an exceptionally high-grade specimen could command a slight premium among specialized collectors. To reach a more definitive conclusion regarding its status, the item would need to undergo in-person weighing, diameter measurement, and examination by a numismatic expert to assess surface flow lines and strike characteristics. The market for mid-century Central American base-metal coinage is generally stable, with modest demand primarily driven by type-set collectors.