Manufactured in different colors between 1929 and 1948, they came in 8 different colors.The user would have a pump to build up pressure in the tank. A match then lit the flame inside. This was an improvement over the “sad” irons that were heated on a stove. Their temperature was more even and lighter in weight, but potentially more dangerous. Gasoline, alcohol, kerosene and other fuels could cause a fire of explosion.