6 1/2 ounce Coke Bottle Question

[dr galaga]

I was checking out a case of 6.5 oz. bottles of Coke before I put them in my machine (looking at the bottom for Indiana cities).  Came across one that I have not seen before.  I am guessing that it is from Canada, or somewhere else outside the US:
The bottom says "COCA-COLA LTD."  with a triangle symbol that has a "R" on top, "1" on the left, "2" on the right and a "18" under it.  No markings on the side of the skirt.
Lots of case wear, so the side is hard to read.  On the Coke side it says "TradeMarkReg 6 1/2 FL OZ." The script side just says "TradeMarkReg"
Anyone else seen a bottle like this, eh?