QP, both 9 & 617 were at Binbrook with Canberras during the early/mid 50s so it would fit.
The lightning flash which I think is on the front of the aircraft in the first photo is similar to the one in the diagram halfway down the page on this link:
Sqn Markings 617_P
In a similar diagram on the 9 Sqn page on that site, one of their Canberras is also shown with the flash, but in blue, not red. See here:
Sqn Markings_9
Prior to seeing that, I had always believed it was a 617 marking only.