1960's Olson Electronics M-169 Stereo Microphone

Way cool 1960's mono/stereo dynamic mic.
It has (2) diaphragms and a switch for mono or stereo ("stereo" label missing).
Currently sports a RTS stereo plug on its original very long cable and sits on its original heavy and solid stand.
You can also wire this with XLR, two separate mono plugs, etc.
to your preference.
Although it is a dynamic mic it has an old school ribbon sound and, like, ribbons, prefers higher gain preamps.
There's not a profound difference in the sound between mono and stereo.
There is a nice proximity effect for vocals and is very cool on drums! $249