Check the listing for details. Sharp EL-322 Vintage Checkbook Calculator with Case, Box, and Manuals. Condition: Open box. Listed at 35.00 USD. The Sharp EL-322 Vintage Checkbook Calculator is a nostalgic piece of consumer electronics from the vintage era. This calculator, with model number EL-322, is a unique addition to any collection of vintage calculators or electronics. It comes with its original case, box, and manuals, making it a complete set for collectors or those looking to add a touch of retro charm to their workspace. The Sharp brand is known for its quality and durability, making this vintage calculator a valuable find for enthusiasts of classic technology. .. this is new and never been used. Box is worn from years of storage. Fresh new battery installed and this is a absolute perfect flawless vintage calculator with unique checkbook book keeping . All original papers and instructions with users manual are included.