ID this antenna-base?
[OK, I've replaced the Burndept socket with a SO239 because Burndept-plugs are as easily-available as fragments of Noah's Ark].
What's it from?
The insulator-part isn't flexible so I doubt it's from any sort of vehicle installation.
The screw-clamp and 4-way-split tube happily takes the stub of a Clansman HF whip, but the overall design-aesthetic (and the Burndept connector) says it's from the earlier Larkspur era.
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