Purchased from an imported sheet music store. The price was handwritten on the back cover at the time of purchase. I believe it's a valuable piece of sheet music, considering the years that have passed. This item has been stored in my home bookshelf since purchase without being used. It's in good condition without any creases, but there is some aging. Please check the images for the detailed condition. #Piano #ImportedSheetMusic #BachInventions #InstructionBook