All the springs (3 of them, anyway, as one was MIA) were the same as the right hand one in your middle picture. I've never seen the pretzel ones, but haven't torn into too many hinges.
I got a pair of replacements for mine from Jim Carter.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.