Rare Smoke Detectors

Fire Alarms
1109

also, here are a couple of interesting vintage GAS ALARMS

https://www.ebay.com/itm/Vintage-3-in-1-Smoke-Gas-Heat-Alarm-Model-SGH-100-Made-in-Japan/182319689981

https://www.ebay.com/itm/Vintage-Craft-Alarm-Residential-Gas-Detector-CL-120-Mint-2-A3/274286644438