This phrase describes silver-plated items manufactured by the Rockford Silver Plate Co. The term “quadruple” indicates the thickness of the silver plating applied to the base metal, signifying a heavier and more durable coating compared to single or double plating. For example, a spoon marked with this designation would possess a substantially thicker layer of silver, contributing to its longevity and resistance to wear.
Items bearing this mark possess increased value due to the superior silver plating. The increased thickness translates to greater resistance to tarnishing and abrasion, resulting in items that maintain their aesthetic appeal for extended periods. Historically, pieces from this manufacturer, particularly those with heavier plating, were considered higher-quality alternatives to solid silver, offering a balance of cost-effectiveness and durability.
