Nathan AirChime M5 Train Horn

My scallop base Nathan M5 being broken in after I fine tuned its voicing sequencing.
Unknown era, and no date stamps, but the heads are fitted with bronze nozzles, which would indicate appx mid to late 1950s.
Horn has been remachined internally and is very loud and powerful.
Lots of quilling action in this video as I wanted to listen to how each bell spoke, to determine if any further adjustments are required.

[@LegendaryMaoMao20]

oh the start of the horn sounds so beautiful, it's like it's singing lol

[@ashetyncrisp519]

I wanted that to scared the crap out of my neighborhood 😂

[@Traincraft101]

how much air did you have for that? jeez lol

[@HybridBell]

A friend's petrol compressor with two tanks equating to 50 gallons + my 12.5 gallon surge tank.