So, when did they become the norm?
Stewart does not seem to offer them standard until the late 90s... well, the cuts and many pics show 19 frets, while Farland is holding a 3 octave in the mid 90s. His "20th Century" seems to have had 22 from the start.
FBC gives a layout for 22 frets in the "ABM."
My Buckbee "Dobson" has 19, SSS Orchestra 13" has 18 (rim size drops a fret), and my S&B has 22.
Anyone looked into this?
Maybe a dumb question, but would it not need to be 24 frets to make a true "three octave neck?"