Don't quite know what to say, but I like it. :)
Thanks Bill. I thought you would notice the missing "hammer" needed to break the glass - it should be dangling from the end of the chain :-)A violation of the fire code I'm sure.
In UK, where the health and safety regulations have gone completely mad, the authorities would remove the hammer and glass and replace it with something safer and less likely to harm a person. (unlike a burning building)! LOL
I see it as another example of our old and decrepit infrastructure :-) Also, I'm pretty sure it's tempered glass like they use in automobile windows...