Hey there Horn Dog,
That second black handled FBM, has that blade been refinished?
It sort of looks blued or something to me.
Or maybe just the standard Busse undercoat?
The ground portion of the blade looks different (glossier for one) than the ricasso and butt - almost like the blade is blued and the ricasso and butt are Busse undercoated or parkerized.
Or is that an optical illusion?