I've got exactly the same call point,in my fire safety training I had back in 2015 taught me how to operate the call point if someone decided to nick the hammer which was common thing stolen back in the day as crooks would then use it to break into cars, I learnt the reason to why these and the hammer on buses was stolen from a retired bus company owner! My mums old retirement home had one if these in the converted attic that was our private quarters, but I slept in a room on the first floor! We had other brands of call points that took proper glass, but I recently found a tape when my parents viewd the retirement home before my mum opened it as one and the fire panel was a old firecheck 4000 when I did a Google search I couldn't find any images of the panel nor the instructions of it so it must be a very rare conventional fire panel, in the basement was a panel to test emergency lighting before we had keyswitches! It was a big metal thing that said emergency lighting push to test. It was a b&b/ restaurant Before it was my mums care home.
We still have 1102's in a building built in 1983. They are Chloride ones. For some reason the newer replacement glasses do not smash into very small pieces like I remember them doing years ago (90s). Like yours in the video they tend to smash into larger chunks. We had one about 5 years ago on a test that had to be hit 2 times with the hammer after first only cracking across the middle. I don't know what they have changed in the process but something is definitely different. Thanks for the video
