These really interesting go-with's were installed here in 1963 and I pretty much recall that! Although this pole isn't slated for a changeover, I understand that these fuse cutouts (rated 7800V at 100A) will be swapped out with polymer ones. Being of *very* Memory Lane nature, I have specially requested these from the utility and I have been promised them once the job is done. I've always loved Line Materials box style cutouts ever since I was a kid ;-)