"By the way, I'm a little perplexed about the age of this kettle"
This is an interesting one....I've been paying more attention to all this since I got the old one.....
This looks flat top, which should be past 1968, but there's no Pat. Pending on the vent, which puts it before 1968 ?!!??!!
There was thumbscrews, right?
Looks like they were there but missing?
Not sure....think we need Craig in on this one here......
@CraigEDIT:
Looking around at others, maybe that's not a flat top, eh?