New members are obligated to offer their first posted kettle to a club member of the same age as the kettle posted. That would be me. All kidding aside, I would love to find a '56 someday. We all know they're out there. This just happens to be the most recent evidence. I need to get a better photo of the vent once you clean everything up. I'm collecting photos of as many vents as I can, and would love a Chicago IL vent in high res. PM me for instructions when you can.
Marty