The Siren Board

Heres the normal test, then a 130 foot distance recording of my 66

up close: https://www.youtube.com/shorts/x31AEV4A7CA

distance: https://www.youtube.com/watch?v=M6g0WtFozLo

I believe I am the first person to post a recording of a model 66 on the board, but please correct me if I'm wrong

Fantastic! What is the year of production of this model?

I have no idea but I suppose sometime in the 50's!