IS, 1920 VIATION 552 … FUEL LEVEL GAGES This cut shows our a Model Gage which is standard on A-A practically all type of military training Castor Oil machines. Other types of gages in large quantities Specially Refined are “ doing their for the Lubrication of bit ” as part of the AERONAUTICAL MOTORS equipment of Eng- ■■…
Aviation Week
Internet Archive · Public domain (published before 1931). Free to use for anything.