Just my experience Ken, in regular lighting conditions, my best guns have a black and white appearance.
If you hit them with much light, they all are deep brown.
It certainly appears that 'Marks 21' 'A' grade has a case colored `trigger plate.
Perhaps he'll share a vague reference point of it's serial number.
It does not appear to have it's frame refinished.
Problem is Ken, trying to get a reference point from pictures is near impossible.
Depending on the lighting, the colors on the the barrels, the case coloring, and the wood can change dramatically.
