1960 Zenith still with original box!

[Einar72]

Or it was CSA-approved for export to Canada. They were very picky about what they let get in. The company I spent most of my career at received a quarterly visit from a dude in a Geo Metro with the CSA logo on the door (looked kinda cute). He would individually test, inspect and review the paperwork for every device we were exporting there. They probably did "type-acceptance" with mass-market electronics, though, hence the stamp on the box.

I'm curious if/where Zenith had a factory up there, I couldn't find anything on Google. Maybe one of our Canadian friends can enlighten us.