Turn Bank Coordinator RC ALLEN 12P61-D26 Cessna part number 0411009-6.  As removed from 58' Cessna Model 172.

Spins up and appears to function as expected with no unusual noises. Ran on-bench for about 10 minutes. No grinding detected by my ear. I put the phone close and placed the unit on a piece of MDF to get all of the "sounds of spin-up" in the attached video. You can listen and judge for yourself!

Part appears to be in working condition; however, I am not an A&P and cannot legally speak to the state of the part. Please ensure your A&P inspects these products to ensure they are airworthy!