I remember that article, I think i was in the Restorer. Somewhere in my multi-foot tower of magazines, I'm sure.One of the Model A magazines had an article about using that can and a new coil. The article said that these coils were not manufactured as original equipment. The technique was to gut the can and put a slightly smaller coil inside. My better half made me store my magazines so it would require getting them back out of storage to find the reference. But it was recent magazine.
This one dose not appear to ever have had a bracket.