First Addition HP-42S Scientific Calculator with Case

Hewlett Packard HP-42S RPN Scientific Calculator 1987 Tested Working New Battery

*NEW* HP 15C RPN Collectors Edition Scientific Calculator - Limited Production

HEWLETT PACKARD business CALCULATOR WITH SLIP CASE & BATTERIES

HP 41C Scientific Calculator with a Memory Module, no Case

VINTAGE HP-42S Programmable Calculator

HP 33s Scientific Calculator RPN Tested Working Vintage Hewlett Packard w/Batts

HP 32SII RPN Scientific Calculator without a Case