1) Printed sheet music of transcriptions by Vahdah Olcott Bickford, who founded the American Guitar Society in 1924, which is still in existence, meeting monthly, and they have only missed four! monthly meetings in ninety-four years. And that was only for outbreak of world war, Roosevelt's death . . .
I believe these transcriptions were published in the twenties or thirties, and they weren't exactly Three Blind Mice - this was Chopin, Beethoven, etc. Such full and utterly complex transcriptions that you could think of things you would rather be doing than trying to learn them - like having root canal. I donated them many years ago to a music school.
She played with no nails, and was the staunchest and most fervent advocate of and for no nails who ever lived. When she was ninety she wrote an article on the subject that made such a cogent case for it that I almost started searching for some nail clippers. I once posted that very article here, and I would love to read it now, but I can't find it. I discussed this subject with Vahdah many times when I was a member of the AGS, and even in her nineties she extraordinarily articulate.
2) Handwritten flamenco sheet music by my teacher, the great virtuoso Mario Escudero. He wrote out all my lessons in standard notation, in pencil, and forty-five years later I still have about half a dozen or so, and they are not even smudged. Needless to say, I have made photocopies of all.
Classical and Flamenco guitar lessons via Skype worldwide - Classical and Flamenco guitars from Spain