Aero liquid oxygen container, mark 1, serial number 22, in wicker basket cover, by John Levick, Birmingham, England, 1914-1923. A vacuum flask with a capacity of 20 litres (equivalent to 15,800 litres of oxygen gas), used for transporting liquid oxygen to airfields from point of manufacture. Liquid oxygen container 1914-1923
Copper Erichsen test sheet with two hemispherical protrusions, associated with an aero liquid oxygen container, by John Levick, Birmingham, England, 1914-1923 Erichsen test sheet for liquid oxygen container 1914-1923
