The NCM HL-21 Vintage Mechanical Hand Crank Calculator is a nostalgic piece of consumer electronics from the past. This vintage calculator, made by NCM, features a retro design and functionality, making it a unique and sought-after collectible item for those who appreciate vintage technology. With its hand crank mechanism and mechanical components, this calculator offers a charming and old-school way of performing basic calculations, perfect for adding a touch of retro flair to any workspace or collection. This item was manufactured in the 1960s to early '70s. functional. in my opinion this item is very nice. please view pictures for your opinion. any additional pictures or questions please feel free to inquire.