Vintage 10K Yellow Gold Bell System Telephone Pioneer Service Ring

This is a vintage signal-style service award ring, historically presented to employees of the Bell System (AT&T). The ring is crafted in yellow gold, likely 10K based on common industry standards for mid-20th-century corporate jewelry. It features a prominent circular face with a scalloped or 'tire' edge. The central motif depicts the iconic Blue Bell logo within a concentric circle design, flanked by what appear to be six small inset stones, traditionally synthetic sapphires or diamonds used to denote years of service increments. The construction includes a wide, polished shoulder that tapers into a solid band. Small hallmarks are visible on the inner shank, which typically include the gold karatage and a manufacturer's mark like Balfour or Jostens. The condition shows moderate wear and surface scuffing consistent with long-term daily use, with a soft patina that has developed over time. The styling suggests it was manufactured between the 1950s and 1970s. The craftsmanship is high-quality industrial jewelry design, intended to be durable and symbolic of a career milestone in telecommunications history.