Cleaning dirty engraving
 

Any suggestions on cleaning dirty engraving without hurting the case color? Thanks in advance.

Disassembled, soak the receiver and other engraved bits in mineral spirits for a half day, or so. Then, a good blowing off with a fine tipped air nozzle. Toothbrush helps without scratching.
If the gun is assembled, or at least has its stock attached, cotton balls soaked in spirits, held it place for a bit, then toothbrush.

Ultrasonic

But DON’T get the mineral spirits on the wood finish!





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This may sound like a dumb question but why do you want to clean it? The dirt/grime actually gives it definition and makes the detail show up. Personally I would probably leave it alone, but there just me.

Mineral spirits generally will not damage wood finishes. It is very mild. Denatured alcohol and acetone are what you have to be careful around.

That may be true in the case of mild build-up in the engraving. But any significant amount certainly does not help the appearance of engraving. I have cleaned many guns that looked like complete crap before hand and after looked like a different gun entirely.
It is a form of maintenance when done properly.

Cleaning Engraving
 

What I did to a DHE

Wow, that’s very impressive.

Protects those awful case colors from showing too