More on the HP97 - 2 for sale - Calculator blog - The Calculator Store
HP-67/97
File:Vintage Hewlett-Packard Model HP-97 Magnetic Card-Programmable Handheld Calculator With Thermal Printer, 7-Segment Red LED Display, Cost New = 750 USD, Circa 1976 (14548847987).jpg - Wikimedia Commons
calculators\Hewlett-Packard HP 97 - calculator.org
Hewlett Packard HP-97" Desktop Calculator, 1976 - May 21, 2016 | Auction Team Breker in Germany
HP 97S calculator parts/repair untested | eBay
My HP-97 : r/calculators
Inside the HP 97
HP-67/97
Reading program cards on the HP-97 | Housedillon
The HP 97 Calculator: A Built-In Printer - HP History
HP Computer Museum
The HP 97 Calculator: A Built-In Printer - HP History