Hewlett Packard HP 42S RPN Scientific Calculator Vintage 1987 w/ Battery Tested

HP 42S RPN Scientific Calculator with a Case

HP-42S RPN Scientific Calculator with Case - Tested Working

HP 42S RPN Scientific Calculator w/case Hewlett Packard Passes self-tests HP42S

Vintage HP-42S RPN Scientific Calculator w/ Original Case & Manual WORKS!

Great Conditon Hewlett Packard HP 42S RPN Scientific Calculator

Hewlett-Packard HP 42S RPN vintage Scientific Calculator w/ Case. Tested Working