A United States Navy (USN) V-5 Program Badge

Sterling silver with blue enamels, maker marked "B.B. CO. ROCH. N.Y." (Bastian Brothers, Rochester, New York), marked "STERLING" and marked with two labor union marks on the reverse, 20.7 mm x 25.5 mm, vertical pinback, intact enamels, dark patina, light contact, near extremely fine.