Matching pair FDD 5.25"/3.5" from Compaq server

Description

This is a pair of floppy disk drives pulled from a Compaq server. The 5.25 FDD is a Canon MD 5501 with automatic eject system, the 3.5 FDD is a Citizen OSDA-53F with 5.25 pinout adapter.
The plastic is dirty but the electronics are very clean. I didn't attempt to clean them because I don't know how to do it in order to preserve the original appearance.
The drives are untested and sold as collectible items.