15-cwt water tanker ID

[Rolf S. Ask]

This photo has got me thinking...

There are some things that does not match up as I see it..

First, the rear fenders (wings??) does not look like any fenders used at any Canadian waterbowser I have seen before. They look more like fenders from a trailer.
The runningboard on the side looks like on a normal truck, and not as on waterbowser where they goes much further back.
And the arrangement on the back looks like it is to close to the cabinet (where the two blokes are standing).

So this might be some field modification where the tank is put on another truck than it originated from.

Any comments??

Rolf