The front of a 1929 Bulletin put out by the Paasche Airbrush Co.  The bulletin promotes using Paasche Air Brushes to make household painting jobs quicker and easier. Please note the hand pump tank, similar to what is used to spray pesticides. The  small image at the lower is an enlargement of the dated sections of the bulletin. 

Paasche bulletin 1929. The interesting thing
is the "Established 1905" date. hmmm...