Thank you for viewing. This is a set of 9 milk bottle caps. There are no duplicates. I am not selling them individually, but I am calculating them at 350 yen per cap. I will offer a small discount and sell them for 3,000 yen. I obtained these new over 30 years ago and have stored them in a can. Although there is some discoloration, there are almost no scratches or stains. Please check the photos and understand that these are used items and vintage goods before purchasing.