I'm really not even sure how to categorize this on ICON as it's such an odd ball, specialty piece. Seems like this might be the best place to put it.

A number of these surfaced recently after being removed from a large radio transmission tower that was demolished in New Brunswick, Canada. A big of quick google searching reveals a few articles about New Brunswick having had a number of large radio arrays installed during the WWII era in the 1940s, and this piece seems to align well with that age.

These seem to be quite unique to the specific installation that used them from what I can see, as I've never seen a post style, hardware, or a marking quite like this. Each piece consists of a heavy, galvanized cast iron bracket with several light gauge copper wires affixed to it. Bold embossing can be found on the base of the bracket, which reads:

RCA VICTOR MONTREAL CAN

MI 22279

The porcelain post itself is odd, measuring maybe 6" tall, with two tiny grooves at its top that each bear a light gauge copper wire. I love that the scrapper elected to keep the original tie wire intact. Unfortunately the porcelain itself has no markings that I can see.

I don't know enough about the technical side of large radio array construction to comment much on how this piece was used, but it certainly is an interesting piece. It's sort of the definition of "I didn't know I wanted one of these until I actually saw it". I thought some folks on here would enjoy seeing it as well, and [id=704207662; I've also uploaded a photo that shows the top wire groove].

New sub-collection started: Canadian large radio array insulators! Thanks to the collector who arranged to buy some from their owner, and transported them to Springfield for me this year.