Lorraine Fabrics where my sister works is inside what used to be an old mill. The alarms in there are Wheelock MTs and the pull stations are Simplex “Lift and Pull” pull stations. Near the stockrooms there is also what looks to be Commander3 with an amber strobe. Not sure if that is part of the fire alarm system or if it is for another alarm. There are MT strobes in the restrooms.
What I found interesting was that around one or two of the MTs, I could make out a rectangular imprint on the wall. From an old system perhaps?