Hedberg sirens?
Posted: Mon Apr 09, 2018 9:29 pm
I know there might have been a thread one this already but I don't feel like browsing the archives or adding to the new bumping trend so from what I have gathered the made a few vehicle sirens. and a few outdoor warning sirens back in the 1940's. do you have anymore info, locations, or pictures. put them here. http://pages.suddenlink.net/acfarer/bhedberg3.jpg http://www.jmarcoz.com/sirens/sanjose_ca1942.jpg those are the only pictures I could find.
