Never heard of this brand "Hunt-O-Phonic"... but look at that picture showing the horn.
It looks like it's separated into a left and right side... or perhaps stereo channels?

Obviously, not true stereo... so I wonder what the purpose was. ...an "orthophonic" horn squeezed sideways into a "standard" sized machine?
http://pensacola.craigslist.org/atq/1406434047.html