wrote in message ...
While sorting through my "collection" of junque microphones,
I found a desk-type mic with
* a fairly thick and heavy base with
* a four-wire cable,
* an RCA logo on the front, below and to the left of
* a plastic horizontal TRANSMIT bar, and
* a sticker on the bottom which says (and sorta looks like):

SHURE BROTHERS INC.
Controlled magnetic microphone
Model #MI-559156-1
Made in Evanston, ILL., U.S.A.
U.S. Patent D-198,850

--W0PBV.

This sounds like an RCA Land Mobile microphone made by Shure

Shure - User Guides and Spec Sheets Discontinued Microphones
http://www.shure.com/ProAudio/Downlo...pecs/index.htm
http://www.shure.com/ProAudio/Downlo...c_mics_content