There is a well-known canning jar from Canada marked BEAVER with a picture of said animal.
Not sure but likely the jars were made at B.F.G.CO - Beaver Flint Glass Company, Toronto, Ontario , Canada (c.1897-1948).
I cannot tell from your one photo what the age of your bottle might be, but my hunch is either late 19th c. or early 20th c. A full straight-on picture would help with this.