Driver's side horn. Mounted outboard on the picture frme.
Passenger side horn.
There is a bent clamp that bolts to the frame, and the horn bolts to the clamp. IIRC the wiring harness attaches to the one on the driver's (LHD) side horn, then extends across to the one on the opposite side. The Radiator frame is the brightly lit part on the right.
I bought this horn from my local NAPA store and it worked fine. The old one broke.
I have no idea what the unterminated purple wires are? The green ones are for the horns.