$50 patterns from 1877 are among the most valuable and desirable patterns ever issued by the United States Mint. There are unique $50 1877's struck in gold of both the Large Head and Small Head. USPatterns.com estimates less than a dozen known of both the Large Head and Small Head struck in copper, some gilted.
This piece is from the famous Simpson collection of Patterns. It has been certified as a PR 64+ Cameo, CAC. It is incredible that such a rare and large pattern from 1877 has survived for so long in almost gem condition. The cameo portrait is breathtaking and the overall look is spectacular.
NGC Census: two PR67 Brown (could be the same coin submitted twice), one PR64 Cameo gilt, one PR64 gilt, one PR63 gilt. PCGS Population: two PR64 gilt. Seven certified coins total, of which five are gilt, less possible duplicates (10/08). Two are off the market, in the Connecticut State Library and the Smithsonian.