Studies on Chopin Studies, Vol 5 No.'s 41 to 48, Leopold Godowsky, piano solo songbook, sheet music, out of print
No Date....Robert Lienau Musikverlag
These are unbelievably difficult.....so much so, there is no point in providing you with a sample page.....if you are interested in this book, you are in the top percentile of the world's best
No's 41, 43 & 45a are for left hand alone