HP-12C Calculator Owner's Handbook and Problem-Solving Guide Manual

1987 Hewlett-Packard HP-12C Calculator+ Owner's Handbook & Problem-Solving Guide

HP-12C Calculator Owner's Handbook and Problem-Solving Guide Manual May 1984

HP-12C Calculator Owner's Handbook and Problem-Solving Guide Manual

HP 12c Platinum Financial Calculator 25th Anniversary Edition w/ Leather Case

Very Nice HP-12C Financial Calculator with Slip Cover and Owner’s Handbook Works