There should be a manufacturer's name and model number on it.
There are ten steps on how to fix a horn in a 2001 Chrysler Towncar. Some of the step-by-step instructions are identify the type of broken car horn it is, pop the hood and have someone press the horn, and then locate the horn or horns on the radiator core support or behind the car's grille.
ebay, or wikipedia.com
check the dates on them
It depends on the club. Some antique car clubs do in fact require you to have a car if not multiple cars. Others you do not.
Books and professional appraisers.
I invented the car horn
Push the car horn button....
What is the decibel level of a car horn?
Take this to a reputable antique dealer
modern car
The address of the Antique Car Museum is: 3550 Mahan Dr, Tallahassee, FL 32308
If a Lincoln Town Car's horn whirls then the horn is broken and will need to be replaced. The horn is located in the bumper towards the front of the car.