ADT pull station age?

Looking for the Age of this old ADT pull station. Doing a quick google search I’ve found ADT pulls dating back to 1908 but this one looks a little newer than that with the more modern logo. Any insight would be appreciated.

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I cant find anything on them, but if I had to make a guess, I would say probably 1930-1950. Nonetheless, it’s a very cool pull station! Where did you see this? I’ll keep looking for more information.

It was in a distribution/Manufacturing Warehouse in Niles Michigan. I haven’t been able to find much on it. Just though it would be cool to know. I appreciate the info!