An old hand told me today the Cent came from St. Hubert Base in Quebec. We got it when the base was closed down. I see from Wikipedia St. Hubert was primarily an air force base, so this surprises me a bit. It was closed down in the mid 90's. I've only been at the museum for a few years but I'll go out on a limb and say that not much if any paperwork exists or changes hands when an old beater gate-guard is given to a museum willing to take it. But I will ask about paperwork, just in case.
A guy who worked on the tank a few years ago showed up today so I picked his brains. He showed me the two large tapped holed in the top of the mantlet where a mount for the spotlight was attached. He confirmed what Mike said about the part of the bustle designed for storing the light.
He also told me he believed the CFR number painted on the tank, 52-S-100S (see photo) is a typo and should be 52-8-1008 (or was it 52-81008?).
He confirmed the upper glacis plate doesn't have the additional welded armour. There are no brass plates inside the tank. He showed me 4 tapped holes in the left hand wall of the driver's compartment where a plate used to be.
He confirmed there were 2 coax machine guns installed but he was surprised to hear this indicated a later Mk as he thought it was a Mk 5/2. His theory on the 20 pdr is that it was installed when the 105 was removed for use elsewhere.
He showed me where a 50 cal was mounted on the commanders cupola.
There is a small control panel in the turret that refers to IR lighting.
He also suggested that the impecunious Canadian army was selective on what upgrades were installed, based on need and cost, so some cherry picking was done. Maybe that explains an unusual mix of upgrades?
I have attached some photos of the front of the turret as Mike requested.
Thank you for your help on this. It's a fascinating exercise.
I'd be happy to take more photos if it would help.
Malcolm
Attachment 101180