This Hewlett-Packard calculator was donated by Kristian Nergaard of San Francisco, California. Mr. Nergaard was hired by HP as a corporate trainer in 1981 and spent almost 20 years working for the company in Northern California's "Silicon Valley" before taking early retirement at age 53.
Most of his career was spent in employee and management development, and he was also a process and quality consultant for many years. He collected a number of HP items during his career, including these calculators used by some of the engineers and employees working for him.
HP-19B, financial calculator was introduced on January 4, 1988, along with the HP-17B and 27B. It was a simplified Hewlett Packard business model calculator, like the 17B. It had a clamshell design and programmable keys.