Here is a pretty decent facsimile edition of Fernando Sor’s (1778–1839) Studies for Guitar Op. 60. He called it something along the lines of “Introduction to the Study of the Guitar in Twenty-five Progressive Lessons. It’s for beginners to intermediate players. Enjoy.
• Fernando Sor: Studies Opus 60 Free PDF
If you want a modern edition I recommend the complete Sor Studies for Guitar (Mel Bay – Grimes) which is a bit cleaner and more modern in fingering. It’s a good one to have in the collection.
Below is a video of the great David Sterobin playing Sor study Op. 60 No. 23 on a nineteenth century guitar.
Video Source/Link: http://youtu.be/GQf4Uf6YU_4