Antique air compressor identification

[rohbjohna]

I've found an antique air compressor machine. How i know who made that machine? Here is the image:

 

[Jim Christie]

It reminded me of a couple of Speedy compressors that my father had years ago so I tried a image search .
SPEEDY AIR COMPRESSOR FROM THE 1940'''s. THE ART DECO DESIGN IS SOUGHT AFTER BY DEISELPUNK FANS | Antique tools, Art deco design, Car tools
It would appear that yours is an older model than the ones I remembered .
My father had both a single and a V twin at different times.
Single one
https://scontent.fymy1-1.fna.fbcdn....NOrqm5ai3Uld29VDKwPNpzvCeotLFFXOg&oe=628617C1
V twin
https://s3-us-west-2.amazonaws.com/usedphotosna/82459428_614.jpg
I can't recall the shape of the tank on ours or if it was original but it was a more traditional shape than the modern one shown in the link.
They are diaphragm as opposed to piston compressors.
I can't remember for sure the maximum pressure they would produce but perhaps 40 to 60 P.S.I seems about the range and there was a built in safety valve on the head that would open when the pressure was reached .
If you search the Vintage Machiery site there may be more info. on there about them .
Perhaps you can save and post the images for future reference.
speedy air compressor - Google Search
The diaphragms as I recall were made of rubber so will perish with age and may be hard to find now unless you can make one from sheet rubber.
For all I know they may still be available somewhere.
Jim