New York City horn????

Any born and raised New Yorkers here? I was troubleshooting a horn issue with my '74 Valiant, and came across in the Wiring Diagrams, reference to something called a New York City Horn.

Anyone know what the heck the difference would be between this, and a regular car horn?

I know exactly what you mean....I lived in East Meadow, Long Island all my life. When I worked at JFK airport, I bought a nicely optioned 1974 Dodge Dart Custom from a fellow worker. It had a toggle switch (just like the map light toggle on my current 73 Dart Swinger that was included with the AO1 light option) just to the left of the steering column under the dash that said "city horn/country horn" the horn sound from the "city horn" was higher pitched to be heard above the din of the city noises and when you switched it to "country horn" it sounded lower to be heard at longer distances. Hope that helps....brings back great memories of that car...had a 225 in her...just like my first car, a 1965 Dodge Coronet 440...she ran like a top!!!!!