Home / United States / World War II / Metal Insignia / 1920’s-30’s USN CPO Visor Cap Sterling Insignia by Robbins Company 1920’s-30’s USN CPO Visor Cap Sterling Insignia by Robbins Company$60.00 Safety pin catch, showing age and uncleaned patina. Backmarked “Robbins Co Attleboro Mass Sterling”. 1920's-30's USN CPO Visor Cap Sterling Insignia by Robbins Company quantity Add to cart Item Number: 71785 Category: Metal Insignia