Trade catalogs from A W Straub Co National Museum of
Quaker City Grinding Mills ; Harosh Mill grinding ; Quaker City Drug and Chemical Mills ; grist mills ; Straub s Revolution Grist Mill ; peanut butter grinding machinery ; using one of Straub s grinders Sumner a concessionaire at the 1904 Louisiana Purchase Exposition sold peanut butter as a health foodSumner introduced thousands of fair goers to this new product cited on page