All of the hardware was painted over with several coats of paint.  This is a good example of what the sash locks looked like. The very same sash lock after all of

Walls painted a light purple color. Close-up of new paint color.

After the final sanding, it was time to prime the ceiling. Ceiling completely primed. We just used an interior water-based latex primer. Walls being primed with same primer. First coat of primer