Vintage Silver-Tone Submarine Service Ring

This is a vintage signet-style service ring, likely composed of sterling silver or a silver-plated base metal, featuring the United States Navy Submarine Service insignia. The central face is a vertical lozenge or diamond shape showcasing the iconic 'Dolphins' or 'Fish' warfare pin motif: a stylized submarine flanked by two dolphins (or porpoises) with the word 'SUBS' clearly embossed in block lettering above the vessel. The construction suggests a mid-20th-century origin, potentially dating from the World War II era through the 1960s based on the casting quality and font style. The ring exhibits significant surface wear and heavy oxidization (patina), particularly in the recessed areas of the design and across the band's shoulders. The band has a textured, almost pitted finish from years of use, which has softened the sharp edges of the casting. There are no visible maker's marks or purity stamps in this view, though they may be located on the interior. The relief of the insignia remains legible but shows signs of abrasion consistent with daily wear. As a piece of military memorabilia, its value is tied to both its material composition and its historical association with the silent service of the Navy.