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u can see by my fingers the original color, and how the used part is turning black, mines not metalliic or anyhinghttp://farm3.static.flickr.com/2051/3534715948_57d1011997_o.jpg
mdunn could be on...

i think the wood side was used for sharpening as well, i was given a cedar shim to use as a sharpener, and it too is stained black from use
not sure though