Company Names, addresses, dates¹:
  Canada Dry Ginger Ale Inc, 916 RI ave NE (1943)

Notes:
The only year I've seen Canada Dry listed in DC directories is 1943.
I've been told that the "W" in a triangle at the bottom of the canada dry bottles means that it was bottled in Washington DC, but I have never been able to confirm that. So I'm not certain if the bottle I have displayed below is really from Washington DC.

Bottles:

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This is an 8" clear machine-made crown top bottle with a stipled surface. It is marked: neck: CANADA DRY bottom: W (in triangle) / C (in triangle) / 20 I've been told that the "W" in a triangle on the bottom meant that the bottle was from Washington DC - but I have not been able to confirm this.