Guardian Service Cookware Preserves Vitamins and Minerals

Guardian Service Magazine Ad Preserve Vitamins www.GuardianServiceWareCollectors.com

This advertisement for Guardian Service cookware was featured in women's magazines during the 1940's and 1950's.  It explains how it is every mother's duty to guard against the loss of precious vitamins and minerals in cooking.  By cooking the Guardian way she can provide her children with the most nutritious meals.