Canada Dry Paper Label - Help to Date

[JKL]

I picked up this paper label Canada Dry quart bottle today.
I was thrilled to find it but can't nail down the date. I assume that because it doesn't have the grid beside the Dominion glass logo that it is pre 1951? There looks to be a letter E beside the Diamond tho,
I know Canada Dry had a commemorative 750ml bottle that looks the same in 1978. This is not one of these.
Any input is appreciated.

 

[Canadacan]

1940's and 50's....I believe by about 1956 the 'shield' label came into use. One of the newsprints still show the 'map' label on the bottle.

 

[JKL]

Yeah ok thanks.
I was hoping it was a bit older but it's still nice to see a paper label in good shape. I don't have many older paper labels.