Fan Shroud id help

[Brad54]

Has it been cut, or is it just mangled and bent a bit?
If it was cut, it'd be VERY hard for someone to make it a square cut... it's hard to cut a straight line on any kind of cylinder with tin-snips or a cut-off wheel.
The edge itself would be a little raggedy too.
If it looks like a factory edge (even bent), then it wasn't cut.
The edges are definitely bent in a bit, and it's out-of-round.
Pretty simple fixes though--I got one that the knuckle-head just slapped an address on and shipped to me... the whole thing was bent up. I actually really enjoyed straightening it out--it was a very satisfying project.

What's telling is that there are only two reinforcement beads on that "short" one, they're spaced differently than the long one, and they're about the same distance from each end, making me think that's the complete, un-modified piece.

It's very possible that it was an early '62 shroud, or even a '60-'61 shroud, and GM made a running change to the design.

For instance, I have a complete, unabridged Technical Service Bulletin set for '54 Buicks--this is a collection of the monthly TSBs they sent to the dealerships, not the abridged, bound TSB manual they printed up at the end of the model year. In it, there is a TSB for the fan shroud--it vibrated at a certain RPM/MPH, and the fix was to screw a piece of small extruded steel c-channel to the sides of the shroud to stiffen it and eliminate the vibration.
I've seen another shroud that had a stiffening rib pressed in at that area--it was a running change, that they figured out some time during the production run in '54, and made a change to the tooling for the '55 year--otherwise it's the same part.
They may have started the model with that short, 2-mounting hole arrangement, and by the end of the production run using the '60-'62 style top-tank radiator, they progressed to the other styles.

-Brad