I believe this horn to be from the 1960's-70's. It has no markings or numbers to identify it. The horn is loud, i tested it, it works. Has side mounting bar for easy mounting. Horn is in very good shape, has some minor outside surface rust. I removed dome cover and it looks brand new. Has one wire coming out of housing, that is the positive connection. Negative connection is made when mounting bracket is bolted to metal frame.
11" long x 6" wide