Hutchins is a repro horn- made in the 1970s-very inexpensive.
generally sell for 35-100. and always on ebay. I have a few floating in my shop at all times.
they look good and sound good. sometimes they are chrome and need to be scuffed and painted.
they are 12 volt
https://youtu.be/679144L9wiA?si=qrI891Fz40W68MyP