Bracket is sound. Sorry, I have no way of testing.
eBay
Car Signal Sound Speaker 60db 12V Super Train 510hz Air Electric Snail Horn Supplies Car-boat Motorcycles Automotive Loudspeaker
Aliexpress UK
eBay
11 Colors LED Speaker Cover For BMW G32 New 6 GT 630i M Car Midrange Tweeter HiFi Music Stereo Horn Ambient Light Decorate Refit
Aliexpress UK
Has patent dates from 1912 and 1913. Exact vehicle, year and application unknown.
eBay
Car Midrange Horn Subwoofer, Auto Speakers, Mid-Range Door Speaker Tweeters for BMW G20 G22 G30 G01 G02 G05 G32 G12 G06
Aliexpress UK
It is approx. 3 1/2" x 5" and in good condition. This is an original ad and not a reprint. Suitable for framing. This service is great for small ads and should arrive with no issues.
eBay
Factory Price Speaker Cover for Mercedes Benz W205 W213 C/GLC/E-class Coupe Car Door Horn Decorative Ambient Light
Aliexpress UK
LOOK CLOSE ASK QUESTIONS BEFORE YOU BID MORE ITEMS IN MY STORE THANK YOU FOR LOOKING
eBay
Eyeglass Frames Unique Vintage Matte Round Thick Handmade Buffalo Horn Stripes Oversize Eyewear Prescription Men Glasses Frames
Aliexpress UK
The Sparton Vintage Automobile Horn 6V Ah - Ooga Horn is a rare and collectible piece originating from the 1920s in the United States (Jackson Michigan). This vintage horn holds historical significance as a unique feature of classic automobiles from that era, adding a touch of nostalgia and authenticity to any vehicle. The Ooga Horn's distinctive design and name make it a sought-after item for car enthusiasts and collectors looking to preserve the charm of vintage automobiles. Includes mounting bracket. Work great but old cloth covered wires need attention.
eBay
64 Colors 4D Rotating Tweeter Speaker For Mercedes Benz W213 W205 X253 W222 W223 W206 C/E/GLC/S-Class Car 3D Treble Horn Refit
Aliexpress UK
This sale is for 2 vintage metal sparton snail style automobile or truck Horns about 8 inches long Horns are untested and have paint wear ,some dents on the orange covers I can't quite make out the model number heavy and not all broken up any questions just send me an email thank you
eBay
5PCS 1W 8Ohm Speaker 1609 Square Magnetic Speaker 16x9mm Aluminum Film Shrapnel Horn for Smartwatch Cell Phone Speakers DIY Kit
Aliexpress UK
SPARTON S.O.S. Deluxe antique car horn 6 volts Appears complete. Hums/buzzes when tested with 6 volt current. Does not produce horn sound. Is a larger version of the spartan sos horn. Various minor imperfections in metal. Great piece.
eBay
MOONSHADE Sunglasses Hidden Horn Tube Storage Removable Rolling Paper Glasses Holder Cigarette Case for Smoking Cool Gadget
Aliexpress UK