Anyone recognize this harness?

“We found this while cleaning out my fathers estate. I believe it MAY be a wiring harness but I am not to sure. The condition is as you see it pictured. This device was not, will not and cannot be tested as I wouldn’t have the foggiest idea on how to do so. The cord as well as the rest of the attachments are very HEAVY!  Due to the nature of this auction and my blatant lack of knowledge of these kinds of artifacts in general, I have started the bidding low with no reserve. This apparatus is being offered on an as-is and/or as-found basis. If however you should have any questions, please do not hesitate to ask as I will do my best to answer them to the best of my ability.”

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