This Astatic 200S Vintage Desk Microphone, is in Excellent Condition and sounds great.
I tested it with my small test amplifier and it has a lot of drive and nice audio.
It is a High Impedance microphone. I do not know if the element is the original or not but it does sound great.
This one has the optional Switch to turn the microphone element on and off.
There is no push to talk switch.