Featured What is this tubular brass thing?

This is about 8.5 inches tall, heavy for its size at 1 lb, 2 oz. It is threaded inside the opening on the underside which I've tried to show in the last photo.
The tubes are hollow, and there is just a little slit to allow something to move between the bottom of the tube and the base.
Tried a google image search and didn't come up with anything. Did a little searching with brass tube and brass column, but so many results to go through. Thanks for any help or ideas to narrow down a search.

 

Part of some kind of organ?

 

Some type of steam or exhaust whistle i'd guess.

 

Just a guess, a thing for an organ like they have at Radio City.

 

Definitely like whistles or organ pipes. The 4 notes together may have made a very pleasing sound, like a harmonica.

 

Steam whistle seems to be it. Thank you!

https://www.worthpoint.com/worthopedia/steam-whistle-52437462

 

just like this one.

https://www.worthpoint.com/worthopedia/vintage-brass-steam-whistle-tube-10-3827177082

 

Train Whistle seems to be a popular term for the type/shape.

https://www.worthpoint.com/worthopedia/vintage-brass-train-whistle-3820944698

($75.00)

 

maybe a whistle from a Stanley Steamer? a little small for a train

 

THIS link of your also called it an "exhaust whistle".....whatever that may be!!

 

An "exhaust whistle" means that the whistle is powered by the steam that comes off the exhaust. You'd pull a chain and it would open or close a valve that diverted excess steam through the whistle on the way out of the engine.

Choo-choo!!

 

Model A Ford exhaust whistle


Aermore brass exhaust whistle


OooOooga or Wooowoooo