Where does this spring belong?

[Dennisfly]

1935 new to me 2Dr Sedan.


The car is on jack stands and I'm underneath on a creeper cleaning, inspecting, and lubing. When i come out from underneath, I see this spring on the floor several feet behind the right rear wheel.I didn't hear anything that sounded like a spring flying off.


I checked the clutch and brake return springs, mid car, and they are both in place. The brake and clutch peddles return and feel normal. Where does this spring belong?