No, no avalanche of grime going on the railbox. I have a soft spot for railboxes, which is another reason I'm going modern on my HO scale layout.
This particular railbox is being weathered after one from a reference photo of an example which appears to have spent 30 years in the California sun, so it's very bleached but otherwise pretty well preserved.
I'll try and dig the photo out the next time I work on the car.
I'm going for a sun-bleached, sand-pitted kinda of look on my equipment. Any suggestions on how to achieve that kind of look? Got to keep it on the simple side. I do have an airbrush just not sure where it is. I generally use rattle-cans or acrylics.
Nye, Inyo & Esmeralda Railroad