Help: Canadian National Archives signature

[Crewman]

Hi,

From one of the veterans of the Polish 1st Armoured Division who lives in Canada I received the scans of a document coming from Ottawa-based National Archives. Both he and me are not sure what is the original source of this document (Canadian 1st Army?; Canadian 2nd Corps?) and what really is this document (after action report?).

As you can see archival signature of this document is:

P.A.C. R.G. 24
VOL. 10,942
FILE 245P1.013 (D6)

Does anyone of you recognize such a signature as belonging to any section of the Canadian military archives? What would you advise me to try to find original WWII source of this document and its name? I have never corresponded with the Canadian National Archives officials that is why I do not have personal experience if they answer my e-mail when I ask them about this document and its signature.

I would be very thankful for your consultation.