AI Appraisal Estimate

This set features two commemorative medals originating from the Borough of Brooklyn, City of New York, issued for the United States Bicentennial in 1976. The medals are struck in solid bronze with a circular, high-relief design. The obverse of one medal displays the Brooklyn Bicentennial Commission logo—a stylized architectural column topped with an eternal flame—surrounded by text noting 'Borough of Brooklyn' and dates '1776-1976.' The other medal features the historic Seal of Brooklyn, depicting a Roman fasces representing unity, a female figure (the Goddess of Justice), and the Dutch motto 'Eendraght Maeckt Maght' (Unity Makes Strength). Physically, the medals possess a warm golden-brown patina consistent with aged bronze. They appear in excellent, uncirculated condition with sharp strike details and minimal surface wear. They are housed in their original presentation case, which features a deep blue velvet-lined tray and a white satin lid liner. These pieces are significant examples of 20th-century American numismatic art commissioned for local municipal celebrations. The craftsmanship is high-quality, showing clean edge transitions and professional die-striking techniques typical of private mint productions from the mid-1970s.

I have examined the digital representation of the Borough of Brooklyn American Bicentennial Commemorative Medals (1776-1976). This two-medal set, struck in solid bronze, presents in Excellent to About Uncirculated condition. The high-relief strike remains crisp, particularly on the Brooklyn Bicentennial Commission logo and the historic Seal of Brooklyn. The patina is consistent with the 1976 production period, showing a pleasing golden-brown oxidation with no evidence of PVC damage or aggressive cleaning. The inclusion of the original presentation case significantly preserves the set's provenance and aesthetic appeal. From a numismatic perspective, these medals were produced in relatively large quantities for local municipal distribution. While the craftsmanship is superior to standard tokens, the market for localized Bicentennial memorabilia is currently stable but niche. Comparables for higher-tier municipal bronze sets typically realize between $30 and $60 at auction, with Brooklyn-specific items commanding a slight premium due to the borough's strong collector base in the New York metropolitan area. Limitations: My assessment is based solely on high-resolution images. While the physical characteristics—such as the die-strike quality and edge transitions—appear consistent with authentic mid-70s private minting, definitive authentication of the base metal and weight requires a physical inspection. To finalize a certificate of authenticity, I would need to perform a gravity test to confirm the bronze alloy composition and examine the rims for any hidden mint marks or signs of casting replicas. A review of original purchase documentation or the Brooklyn Bicentennial Commission's issuance records would further solidify its provenance.