[Milsurplus] ID'ing a meter

[Barry Tuttleman]

older vintage smaller round black meter: 

          WESTINGHOUSE

             0 - 15 (single scale)
              VOLTS
          ALTERNATING CURRENT
        U.S.N. TYPE CAY-22082-A
   STYLE 1208684   TYPE NA-33  600 - 800 CY

and has "FILAMENT VOLTS" tag that mounts w/ two of the meter mounting screws.  now when i need it i cannot locate the website that IDs various military parts by radio type; any assistance please?

item will be for sale.
TIA!
barry
carson city, nv