How tall is an oxygen tank used in a full sized oxy-acetylene welding torch? - Model Railroader Magazine

"PROTECT ALL CYLINDERS FROM FALLING OBJECTS. AVOID ROUGH HANDLING, DROPPING, OR KNOCKING OF CYLINDERS TO PREVENT DAMAGING THE CYLINDER, FUSIBLE PLUGS, RELIEF DEVICES, CYLINDER VALVES OR GAUGES. STORING ACETYLENE CYLINDERS ON THEIR SIDE MAKES THE ACETYLENE LESS STABLE AND LESS SAFE, AND INCREASES THE LIKELIHOOD OF SOLVENT LOSS AND RESULTANT DECOMPOSITION. ACETYLENE CYLINDERS SHOULD BE STORED AND USED IN THE UPRIGHT POSITION AND FIRMLY SECURED TO PREVENT FALLING OR BEING KNOCKED OVER."