MikeC
REGISTERED
Fire extinguishers need to be maintained. They should have a sticker or a tag with the last inspection date. A functional vintage fire extinguisher that does not have this tag is not considered functional. These extinguishers should not be displayed in a manner that would cause someone to think that they are functional. If someone came upon an old copper fire extinguisher of the soda acid type that has not been removed from service, it will not have an inspection tag. Furthermore, it should not be used because it will become a pressurized vessel that has a history of failing in a bad way. Other antique fire extinguishers had dangerous chemicals as the extinguishing agent. There is a good change that it is carbon tetrachloride. Once again, it is my opinion that non-functional (not meeting current testing standards) fire extinguishers should not be displayed in a manner that would create confusion in the untrained person. Any display of a normally encountered safety device should make it obvious to the untrained person that it is for display purposes and not intended for use.