Looks like a cut down version of the National Panasonic Cougar No 7
https://www.radiomuseum.org/r/panaso...o7_rf_877.html
As has already been said there was a proliferation of these things in the 70's so it might not have been one of the known manufactutrers.
Now where did I put my Cougar 7 I have rockets to launch
Cheers
Mike T