Up for sale is a fantastic surviving lot of vintage Hewlett-Packard magnetic program / data cards from the classic HP programmable calculator era.These accessories were originally designed for use with the HP-65, HP-67, and HP-97 series, and can also be utilized with the HP-41C / CV / CX when paired with a compatible card reader.What’s Included:1x Original HP Blank Cards Box: Labeled "120 Blank Magnetic Cards".3x Spiral-Bound Card Holders: Tan wallets used for organizing and carrying the magnetic strips safely.3x Sealed Card Packs: Labeled "Hewlett-Packard Blank Program Cards".1x Vintage Storage Box: Condition Note:Items are in good vintage cosmetic condition with minimal shelf wear as shown in photos. The magnetic cards and holders are being sold UNTESTED / AS-IS due to a lack of a host calculator unit to run them through. Please review all photos carefully to assess the physical condition before purchasing.Shipping includes careful packaging and tracking number. Please reach out if you have any questions!