Canadian Corps ops room WW1

A photo captioned "Canadian Corps Operations Room".

In the center is a Field Telegraph Baseboard Set with an external pedestal sounder box in lieu of one on the board itself. The wires come out of the board from where the sounder should be so it looks like a local modification. There are also three more, one at far right and another in the back behind the centre one and another between the two soldiers seated in the background.

Credit: Military Communications and Electronics Museum Archives