Looking for info on rare K horn bells

Hey, first post here.

I have #1 and #3 k horn bells that have a rubber seal similar to the p horn setup.

From what I’ve heard the were pretty rare, only made for a year or two in the early 50’s. I was wondering if anyone had any more info on them?

Yep pretty Rare horns you got there. These were sandcast as apposed to diecast and were canadian tuned either K3 or K5H bells 12345. They were made in the 50’s but soon after redesigned due to excessive wear and inconsistency of the rubber nozzle.

Shibananing Hey you still have those bells? Is there a tag on the one bell?? Curious what it looks like and what the backcaps are like? Curious if you would entertain selling them??