u/Retro-Revival-EU

The before pictures have a yellower light in general but I think it's clear this thing was sun-baked and mud-caked.

My process is nothing fancy. I let the case soak in warm water and soap for a bit and then give it a good brushing. It then sits for a few hours in a small plastic container with some cheap UV lights and aluminum foil and about a liter of 12% hydrogen peroxide (which may be reused!).