milners curiosity or not ?

[safeman]

Chubby, what you say about siting retro-fitted AEDs might make sense in theory but unless the entire safe is designed and constructed to match such attack, the remains of your AEDs will be scattered as far around the car park as the rest of the bits of the safe. No matter where in the door you position them. The same goes for bankers/treasury grade safes when enough HE is used. It's scary stuff indeed.

I see what Chubby's getting at Huw. The placing of charges such as Gelignite can only be accomplished through the keyway, punched out CK lock spindle hole, or in a gap created between the door and the body. This would be unlikely to exceed an ounce in the first two instances and a little more in an edge blowing. If the resultant detonation did not create an alarm, a second much heavier charge could of course be applied to the space vacated by the lock using a prophylactic.
As you will remember Huw from the photograph of the Double Door Hobbs Hart on my website, if the charge is great enough and the site isolated enough, something has to give but I've never yet seen that apply to a more modern top grade safe. Yet.

[Tom Gordon]

I see what Chubby's getting at Huw. The placing of charges such as Gelignite can only be accomplished through the keyway, punched out CK lock spindle hole, or in a gap created between the door and the body. This would be unlikely to exceed an ounce in the first two instances and a little more in an edge blowing. If the resultant detonation did not create an alarm, a second much heavier charge could of course be applied to the space vacated by the lock using a prophylactic.
As you will remember Huw from the photograph of the Double Door Hobbs Hart on my website, if the charge is great enough and the site isolated enough, something has to give but I've never yet seen that apply to a more modern top grade safe. Yet.

Or maybe the wood isn’t original and someone innocently thought that they were upgrading its fire resistance??

[safeman]

Or maybe the wood isn’t original and someone innocently thought that they were upgrading its fire resistance??

Very original Tom but ineffective against high explosives.