Be sure to add me to your favorites list Original Vintage Casio / Casiotone 501 Barcode Music Reading Electronic Keyboard Operation / Owner's Manual Book, Made in Japan. This is an original full User's / Operation Manual for the early 80's vintage Casio / Casiotone model 501 barcode music reading electronic keyboard. This manual is in very good condition, with some marks on the covers, some scribbles on the back cover, but the pages are clean and easily read. This booklet has great information in both English and Spanish sections. This is a very helpful owner's guide if you have one of these fantastic vintage Casio keyboards, and a neat collector's item now too! Original Casio document, made in Japan! This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking! Check out my Store!