from the site "www.flamenco-guitar.net
"Francisco Barba (1939-)
At the beginning of the 1960s Francisco Barba started working as a carpenter with his father, until he decided, being 17 years old, to become a self-taught luthier. He learned and worked in the same workshop what is still his house in Arroyo Street, in Seville."
I can't understand how he could be carpenter in the early 1960s -so at least 20 years old- "until" he decided to become a luthier at the age of 17...?!?