One of my wonderful readers suggested that I should check out Emtek Hardware for mid-century door knobs. And there it was the Mad Men office door knob that I've been obsessing over, or at least a reasonable facsimile, the Emtek orb knob with square rosette (which is what they call the escutcheon/backplate).
And then I found the Emtek round knob with square rosette, which I might like a little better. I think it's going to come down to which one feels better in the hand.
But then I had a panic moment and thought something more like this would look better on a Crestview Westhaven door.
The longness of it might match the windows nicely. But I always think these types of handles are more commercial in nature, and it might look weird on our mid-century home.