Disclaimer This blog is about the graphic design of burglar alarms and has no connection with the companies featured. Most photos show vintage sounders and are not the latest products of the firms under discussion. For up-to-date info on any company, please visit their official website.
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- MikeP on “ExtraWatch Security Systems”, Islington: which witch


Hi, I believe this is Dunstable Lock and Safe from Bedfordshire, a long way from home.
They have used many different boxes first one’s was the Eurobell, and the baton type one.
Very strange. Just rug the number on the bell box and they answered DLS.