It's Paco!
His fifth album (1974) as a leader soloist, and it's a milestone in his career and in the history of flamenco guitar. Issued by Island in the UK and USA the following year, as simple as "Paco".
The technical skills shown in this album had not been achieved by any flamenco guitarist before and, honestly, I think it is still unsurpassed.
Moreover, it includes "Entre Dos Aguas", a semi-improvised rumba which is one of my favourite guitar pieces. Period.