This vintage tin milk can has features a crossbar type lid, commonly known a plug lid. These types of cans were worth more than the umbrella type lids, as they could retain cream (the expensive part of the milk) a little easier, causing less spillage. Milk cans were used to transport dairy products from farms until the 1950s. Milk cans were first used for transport in California in 1938, and on the East Coast in the 1940s. This particular can has been painted with a pale green and yellow.