[Milsurplus] Anyone recognize a 50s FBI hf surveilance radio?

[Marty Reynolds]

10-hut!   Here's 2 fotos

    http://qsl.asti.net/May-day_155.jpg

    http://qsl.asti.net/May-day_156.jpg

This gizmo was a Revenooer (A&TT / alcohol & tobacco tax) set maybe built
in Portland, OR by a USFS contractor.  Probably in late 50s as  divined fm
pix.  And a good s.w.a.g is set designed by hams.  This one crystalled for
75m.

Guessing that, it's too new for the "Radio for the Fire Line" book re USFS
2-ways.

I'd just love any data a'tall

    Tnx,

     Marty aka aa4rm