There is a bit of confusion regarding Denver Sirens and model identification. I have compiled several photos of each presently known model to date, starting smallest to largest. Each photo has an in-depth description, but I will include them below aswell. A huge thank you to Adam and Derek for some ...

Kasey wrote: ↑

Mon Feb 13, 2023 7:51 pm

Use Google/Bing Maps, and look at fire/police departments, water towers, and around refineries and nuclear plants. You should be able to find quite a lot.

I think he is actually referring to the maps that show siren coverage. They are typically put out by EMA agencies or user created.

I decided to map out as much of Quebec as I could, and I think this is the most complete map of Quebec thus far. Quebec sure has some oddities, such as unique "Canadian" Model 5s with unique housings, some weird Sterling-like sirens that nobody can identify, and even a H.O.R. https://www....

This is actually the third to have been photographed as far as I know, the second was in Parkersburg, PA and is no longer there, pictured below. If I have decoded the Serial numbers correctly, Jerome AZ is Series 100, S/N 105. I believe this decodes to Series 1 #5. But I could be wrong. I am curious...

Oh boy, here we go. Manchester, Michigan https://www.google.com/maps/@42.1464282,-84.0409286,3a,86y,67.15h,96t/data=!3m6!1e1!3m4!1s3kJ0_sZ0Z-YlNGroVVV_LQ!2e0!7i13312!8i6656 Edmore, Michigan https://www.google.com/maps/@43.4080353,-85.0412068,3a,15y,186.52h,93.59t/data=!3m6!1e1!3m4!1s8RBI9Y4s5O8BHbL5...

I'd be curious to know how this affects coverage, if at all.

Steam and Pneumatic siren horns of this type date back to around 1859. It was the evolution of these devices that led to the sirens we know today. There are actually quite a few fog horns of this type still in regular service, viewable via YouTube. Thank you for sharing this! it is always a treat to...

thegrandwaffler wrote: ↑

Sun Jan 29, 2023 1:25 am

Eclipse DDS wrote: ↑

Sat Jan 28, 2023 9:02 pm

Again, sorry for the bump. Give me a slap in the face if you need to.

Word of advice: don’t bump threads if you know you’re going to get told off… it just lowers your karma
Plus, stop spam posting…

Continuational threads like this are typically fine to bump. Take a breath.

Grand Ledge, Michigan.

Figured this thread could use a revival Denver Quadruplex Siren, Pullman Wa city hall Ca 1933 default (1).jpg Denver Duplex siren Fort Coombs Armory, Apalachicola Florida I would guess 1940s or 50s based on truck FtCombs.jpg Denver Duplex Siren, Superior Portland Cement plant, Concrete, Washington 3...