If you chase down 'restored' Bosche, etc on some certain big name auction sites, make certain to ask the seller, " Does it HONK?"
Again, I have let my wallet go some places my brain never caught up with.
I have a beautiful chrome unit that now adorns my mailbox. I have another that was too badly corroded inside to be rebuilt, but it sure looked good in the picture!
I have a dual tone Porsche horn activated by the horn button in the steering wheel and a an old VW bus button mounted down underneath on my steering column that activates my SUV-penetrating air horns...
Now if I could just find a laser-electronics disabler, hood mounted with cell-phoneconversation-seeking...