I've never seen one like this.
It looks like Hassler styling.
My grandma had a bed with those same springs.
A type of simple shock for the Ford. Low cost, probably helped the bounce
I thought I had seen all the T Shocks. That one is really different. You learn something new every day.
I bought a cut down AA that had one of those. The axle in the photo seems to have the A/AA curve.
That spring is on a wagon conversion the axle is bent, assuming from weight, it is probably added after conversion and not used on a running car. MG