Company Names, addresses, dates
  Danville Drug Company, 408 Main Street, Danville VA (c.1917) ¹

Notes:
The Danville Drug Company charter was issued in 1913. Ront Blackwell was the company president, W.K. Anderson was the vice president, Harry W. Thomas was the secretary and treasurer.²
The only year I see it listed in the city directories is 1917. It's listed at 408 Main Street - in years prior to that, the P.R. Jones Sons pharmacy was at that address. I don't have access to any Danville directories between 1908 and 1917, so the drug store switched over to become the Danville Drug Company sometime in that time range (1908-1917). Likewise, based on the next Danville directory I have access to, it ended sometime in the range 1917-1921.¹

Bottles:

This is a clear, 4" bottle that is cracked and badly mishapen, presumably because it was melted at some point. It is embossed: vertical in a ribbon: DANVILLE DRUG COMPANY vertical below the ribbon: DANVILLE, VA.