I've got the american made equivalent attached to the back of my 67' color Airline.
I've been meaning see if it works, and see if I can get it to transmit.
When I got that set from the spot it sat in since new I remember unscerwing what seemed like a dozen twin lead lines and thinking "Wow I know this is a fringe area for several cities, but who would need so many antennas!?". Then I realized that most of those lines ran to other TVs, and not to over three extra antennas!
Tom C.