What a great picture Dave....thankyou for posting it. There do not seem to be a whole lot of pictures of Glasgow during/after her Service in the South Atlantic.
This one, as you will no doubt obviously be aware, (explaination for those who don't) is of her return to the UK. The exit hole created by the 1,000lb bomb can be clearly seen on the ship's side below the Mainmast. This bomb entered from the Starboard side, and carved a path of destruction through the aft end of the AER (After Engine-Room) before punching through the Port side without exploding.
Had it detonated, the effects would have been catastrophic, given that the compartment contains not only the two Tyne Gas Turbines, but also the Main Propulsion Gearboxes, first lengths of shafting, associated Lube Oil Pumps, Hydraulic Oil Pumps for the Controllable Pitch Propellors etc etc. The aft bulkhead would almost certainly of been breached also, allowing the flooding to take hold in two of the four largest compartments in the vessel. There is a very strong possibility that as with Coventry, she would have been lost.
As it was, the crew had a massive damage control job on, but through their outstanding efforts Glasgow, survived. I did read somewhere that there was a Watchkeeper standing between the two Tyne Engine modules (literally about 10 feet from it's route) as the bomb came through, he would of had a War Story to tell.
Nige