Good working HP-15C Scientific Calculator. Serial No# 2707A55439. There are many surface scratches to top silver faceplate and scratches on the display. Small HP 15C emblem on top right corner is missing. The backside has black marker smear on top edge and left side as shown by pen tip. Includes batteries, HP case and CD with HP-15C Calculator Owner’s Manual. Guaranteed working condition. Free shipping in USA.  
Item Tag: HP
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Vintage Hewlett Packard Voyager Series Calculator Starter Collection
HP 11C (1981) HP-11C Introduction – HP Key Notes (Sep–Dec 1982) The programmable powerhouse of the Voyager series “The HP-11C is a programmable scientific calculator that combines the power of keystroke programming with advanced mathematical functions — all in a compact, rugged design.
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New Neoprene Rubber Feet for HP-10C, HP-11C, HP-12C, HP-15C, HP-16C Calculators
Set of 4 new neoprene rubber feet for use on HP-10C, HP-11C, HP-12C, HP-15C, & HP-16C Calculators. These are new with the sticky back for peel and stick installation. These are made from neoprene rubber and are the exact size of the original HP calculator feet.
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Vintage Hewlett-Packard HP 15C Scientific Calculator W/Case & Manual TESTED
It was my go-to calculator during high school and college. The manual has notes from when I was studying it to learn the functions. It has been tested and includes new batteries.
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Vintage Tested 1985 HP Hewlett Packard 15c Calculator & Owners Handbook Working
This calculator is a rare find, manufactured in the United States by HP.
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Hewlett Packard HP-15C Calculator Manual – Half-Letter Size
Manual for Hewlett Packard HP 15C Calculator This is a printed copy. Half-Letter size. 300 pages.
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Hewlett-Packard HP 15C Programmer Calculator – Tested Working
In working condition or your money back!
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Hewlett-Packard HP-15C Programmable RPN Scientific Calculator with Slip Case
Vintage Hewlett-Packard HP-15C RPN Scientific Calculator with HP Slip Case. Some light scratches on bezel. Buttons and functions test great. Batteries included.