IF you want or are planning to acquire a used siren that is in service or is on city ground NOTE:!! City or county government does Not move fast it will take time and sometimes a long time it is no unusual for 1, 2, or 3 years before you get them I have waited up to 3 years already for them. bugging them does not work and sometimes then they will just brush you off.
1 Some city county Sell at Auction
2. Some will scrape and not sell them
3. some have closed bidding notices in the local paper
4. some will only sell to other municipalities
5. Some will sell to you but you have to take them down
6. Some will sell them you and take them down (Get a lottery ticket if this happened s because you got very lucky
7 Some trade them in to who is installing the new ones
8 some sell between other siren collectors
Just my 2 cents