Five pins on the bottom of the popping valve does ID the popping valve but
does not rule someone attempting a copy. The tone holes match up very
nicely on the different style Taylor chanters that I have seen (and they
were almost certainly from different periods). Brown, Hennelly, etc do not
match up as well - they are all concert pitch, although some Taylor seem to
want to play a bit sharp of concert.
One unmistakable trait is the lack of straight lines in the metal work -
always a swoop, curve, or bend - in the keywork and popping valves of sets
in both the ribbon and teardrop styles. The later makers most often use
straight, harsh lines (and ribbon-style keys).
The ivory mounts show a nice consistency over the years, too.
Also, in ONeill's famously obfuscatory prose, the Taylors did not drink but
were 'preyed on' by those that did when payment arrived. Apparently, their
address and where they cashed the payment was the local tavern.
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