Electric fire alarm device
Control box for fire detection and alarm installation
1965
Alarm indicator relay
Alarm indicator regulator
Fire detection and alarm installation by Minerva Detector Co. Ltd.
1965
Fire detection and alarm installation
Fire alarm control panel
‘Fire-Fault’ pattern Pearson Fire Alarm
Indicator panel of the 'Fault-Fire' Pearson Fire Alarm
1898-1911
Fire alarm control panel
One radioactive smoke detector
1965
Fire alarm component from a fire alarm control panel
Part of fire detection and alarm installation
1965
‘Fire-Fault’ Pearson Fire Alarm
1898-1911
One sectioned radioactive smoke detector
1965