The HP 97 Calculator: A Built-In Printer - HP History
Hewlett Packard 97 S I/O Calculator Part 1 - YouTube
HP Virtual Museum: Hewlett-Packard-97 programmable printing calculator, 1976
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
HP-97
The early history of HP calculators | HPE
The Hewlett-Packard 65, the first pocket programmable calculator, and it's successor(s), the Hewlett-Packard 67 and Hewlett-Packard 97. : r/calculators
Hewlett-Packard HP-97 Calculator - Calculator - Computing History
Hewlett-Packard 97 - The Vintage Technology Association | Hewlett packard, Calculator, Technology
My HP-97 : r/calculators
Calculadora VINTAGE Hewlett Packard Modelo 97 con Bolsa Original y Adaptador de CA | eBay
HP-97
The HP 97 Calculator: A Built-In Printer - HP History