HP-28S Hewlett-Packard Advanced Scientific Calculator Working And Tested

HP-28S Hewlett-Packard Advanced Scientific Calculator Tested Works

Vintage HP Hewitt-Packard 28S Advanced Scientific Calculator - Tested, See notes

HP 28S Scientific Calculator Vintage Hewlett Packard USA 1986 - Tested - READ

HP 28S Hewlett Packard Scientific Calculator

Vtg HEWLETT PACKARD HP 28S Scientific Calculator TESTED 1986 NEW Batteries

Hewlitt Packard HP 28S Advanced Scientific Calculator New Battery