This link is to a fuel pressure gauge from a WWII plane. If you click on one the smaller pictures it is shown enlarged in the top frame. Note the the numbers following the 5907 are blacked out for some reason, but the 5907 is clear. Also note that the tag has some of the same patent numbers and some of the wording is identical.
http://www.2040-parts.com/bendix-typ...ument-i728397/
You can also get some ideas by looking up the patent numbers here then downloading the associated pdf file:
http://www.freepatentsonline.com/
This may be a similar dial:
http://www.2040-parts.com/bendix-avi...-era-i1638372/