The Sterling B 871 mark appears on items made of genuine sterling silver, indicated by the word “Sterling.” The number “871” is a catalog or pattern number, while the letter “B” may denote a specific series, variation, or manufacturer’s internal classification. This type of mark is often found on hollowware or decorative pieces from early to mid-20th century American silvermakers. Although the exact maker may not be identified without additional marks, the presence of this code helps in authenticating the piece and identifying its design. The Sterling B 871 mark is valuable for cataloging, appraisal, and matching purposes.