stupid horn question

the horn on the 73 scamp i just bought isnt working, no click, nothing.

now i sure would like to test it at the horn BUT i cant find the damn thing
stupid i know but i have searched all over the engine compartment and unless its bolted to the bottom of the battery tray ( only place i didnt think to look) i dont think the horn/s are there.

if someone can tell me where it/they are supposed to be i would appreciate it.