What kind of horn is this?

[denniskliesen]

Your horn sounds like mine which is also a Ames. There are 3 locations usually with the Ames diamond shape stamped on it all of which I wouldn't bother scratching that nice paint off. I found doubling the gaskets supplied from the vendors help the sound quite a bit. It would be a good idea to put a drop of locktite on the bolts holding the horn to the bracket, I experienced that problem and nearly lost my horn.