Simplex 4904-9103 This is the ceiling-mount version of the Simplex 4904-9101 remote strobe. Brand SimplexModel 4904-9103Manufacturer SimplexType Alarm (Remote Strobe)
GE/EST SIGA-278 Category : EST/Edwards, GEThe metal components on this pull are a bit rusty. It is co-branded by GE and EST.
Gamewell A8814 Category : GamewellI have no idea what year this alarm is from, only that it’s old and heavy.