This is a Buchanan's Black and White Whiskey bottle. The company name was changed to said name around the 1890s and was formerly known as Buchanan's Bitters. Due to how crude this bottle is, I am guessing it's from the 1890s. I would rather get some experts to help me rather than telling others...
http://vonkellman.hibid.com/catalog/83009/antique-bottle-and-glass--victorian-era-through-mid-century/?sortOrder=2
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