Pair of Art Deco Silver Napkin Rings with Latin Quotations

A pair of two matching silver napkin rings presented in their original blue leatherette or pebbled-skin display case with a cream satin lining. Each ring features a distinctive cut-out openwork design incorporating Latin text. One ring displays the text 'NON SIBI' (Not for oneself) and the other features 'SED OMNIBUS' (But for all), or similar moralistic phrasing common in the early 20th century. The rings are constructed from wide bands of polished metal, likely sterling silver or a high-quality silver plate, with a slightly concave profile. Below the lettering, the design elements include stylized silhouettes of birds or doves, suggesting a theme of peace or charity. The typography is a bold, sans-serif block style characteristic of the Art Deco period, likely dating between 1920 and 1940. There is visible surface oxidation and a dark patina developing in the recessed areas, which is standard for aged silver. The case shows minor wear on the exterior hinges but remains functional with its brass clasp intact. The craftsmanship suggests a custom or boutique manufacturer rather than mass-produced flatware, evidenced by the precision of the fretwork.