GATES BROADCAST M-4556 CRYSTAL OSCILLATOR AM TRANSMITTER

Description

Gates M-4556
I am unsure what this is. I think it is a crystal oscillator for a Gates Broadcast Transmitter. Please view the photos. I hope you can recognize it and use it.
It is untested and selling as-is. . please see the many photos provided. Being offered at a low Buy It Now.
Shipping will be 14.90 to the US. International welcome. Please see shipping to your country. No shipping to China or Italy..
Please see my other items for more vintage broadcast gear from my warehouse of vintage electronics.
For Sale:
An Electrocom frequency shift tone keyer, model TK-100, built for dedicated send/receive 850 hZ shift radio teletype.  As we understand it, these were commercially produced for businesses with dedicated 850 hz teletype send/receive terminals.  They were, when new, more or less, plug n play units requiring, like their modern modem or router counterparts, only an initial set up.  It was working the last time it was used (several years ago) but has not been tested in a long time.  With a modest effort, it should be reuseable.
Condition:
Used, untested.  Please see photos and study this prior to buying.  We do not want returns.
Shipping:
Shipped quickly in a USPS Flat Rate box with tracking & some insurance.