Early Nickel plated curly motorcycle horn with detachable fly screen and mounting bracket for 7/8 or1 inch bar.Works well with distinctive
duck like call.
Marchal type Micro
ref 241
12 V G (=grave: low tone)12 V A ( = aigu : high tone)
outside diameter : 126 mmone hor: sound is perfect, other is a bit rough ( not perfect) needs some adjustment. cleaning?