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"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Just because I don't care, doesn't mean I don't understand." - Homer Simpson
I believe it was manufactured in the USA in 1964 as it has this date on a label attached to the Allen key that came with it.I think you'll find that's 9/64
Masterbuilt by acclaimed luthier Two Way Rod
Serial number suggests it was built in April 1938.