Ice boxes were a formerly popular device which also used this method. Large sheets of ice were loaded into the back of an ice box, which would keep the contents of the insulated box cool for extended periods of time, while the ice slowly melted into a tray. An "ice man" would come around periodically to sell more ice, so that food could stay cold. Each winter, ice would be dug out of ponds or rivers, and stored in quantity, for sale throughout the following seasons.<ref>http://deforesthistory.org/newspaper/Whats%20an%20ice%20box.pdf</ref><ref>http://www.antique-ice-box.com/iceboxhistory.html</ref> | Ice boxes were a formerly popular device which also used this method. Large sheets of ice were loaded into the back of an ice box, which would keep the contents of the insulated box cool for extended periods of time, while the ice slowly melted into a tray. An "ice man" would come around periodically to sell more ice, so that food could stay cold. Each winter, ice would be dug out of ponds or rivers, and stored in quantity, for sale throughout the following seasons.<ref>http://deforesthistory.org/newspaper/Whats%20an%20ice%20box.pdf</ref><ref>http://www.antique-ice-box.com/iceboxhistory.html</ref> |