I just received a used, possibly vintage, Merkur Slant that I won in an auction. The handle was white with, what I assumed was, soap scum. Well, after a good wash and scrub the handle is, if anything, even whiter than before. Did Merkur ever make a white painted razor handle? Or is this some sort of oxidation or chemical discoloration? And, hey, while we're asking questions, how do you tell the difference between a vintage Merkur and a recent one?