I think you're right Demonic. I was "ball-parking" that as about a '70 c-body.I believe your C body suspicions are correct, it appears identical to one I have from a 72 T & C wagon. Most C body Mopars w tilt column used a Saginaw column w wiring adapters to Chrysler harness.
I suspect it could be for a B-Body with a Tuff Wheel. The Tuff Wheel is smaller in diameter and is not dished like a standard 3 spoke wheel. This would explain the shortness and straightness of the arm.