I was reading a post about another topic, and the fellow commented about 2 way radio in steam locos. Does anybody know what year, if at all, a 2 way system, either radio or the induction telephone, was installed in a steam engine, or maybe it was not in the loco but in the caboose where they could possible hear it. I've never seen a picture of the cab of a steamer where I could see a remote control to a radio, an antenna, or a handset which would make more sense than a speaker and mic. Referring to the days when steam was still mainline, and not excursions and restorations of today.
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