This is a set of five buttons featuring Sanrio's Hello Kitty design. They have been stored unopened in my family's sewing box for a long time. It appears they were either purchased or received as a gift but were never used. The design depicts Hello Kitty sitting sideways, representing the earliest designs from her inception in 1974. The front of the paper package features Hello Kitty with the label "KITTY BUTTON", while the back displays Sanrio's logo at the time along with the text: "Manufactured by Sanrio Co., LTD 1570JTBU9010 1975 SANRIO CO.LTD". Notably, there is no "Hello Kitty" logo as we know it today—research indicates that this trademark was not registered until the mid-1990s. The absence of a JAN code suggests this was produced before barcodes became widely used. Given the overall appearance, particularly the font, it is safe to say this is not a reproduction but an authentic item from Hello Kitty's early days. As far as I can assess through the packaging, there are no chips or print fading. While I am not making any guarantees, I believe the buttons are likely free from sun damage based on their storage conditions. The staple securing the package shows some rust. Please note that this item is being sold as-is, with no claims or returns accepted. Thank you for your understanding.