[Boatanchors] "Tenna-Testor" by Kirk Electronics

[Walter Treftz via Boatanchors]

An interesting piece of test stuff just showed up in some estate gear we're involved with.Need help for manual or specs (at least what freq coverage is) of following
"Tenna-Testor" mfd by Kirk Electronics of Dayton, O. Has SO-239 (UHF) coaxconnector on one end, marked "Antenna"  and banana plugs on other (marked Exciter). Meter is 0-10 relative and 0-100 SWR. Fits in palm of your hand. No model number on it.

Looks like it would be a neat item if we can figure it out. Any info, like where to geta manual (it would be real small), the freq range, etc. would be greatly appreciated.If all else fails, will do the old "trial & error" method to determing freq range.
Tks & 73Walt (N4GL)