IBM Electrographic Pencil


$ 10.00 

This product is currently sold out.

Developed by IBM in 1937 in conjunction with the first test scoring machine, the IBM Electrographic mark sensing pencil came to be. The core was made from electro graphite—artificial graphite made by heating carbon in an electric furnace (otherwise known as graphitized carbon). Not only did this make the electrons in the graphite smaller and therefore easier to pick up by the machine, it also created a darker, shinier graphite. These days tests are taken with #2 pencils which effectively do the same job on modern, less sensitive machines but enthusiasts still love the line that the old test-scorers allow.

Vintage: Unknown

Made in the USA

Round barrel 

Please note that all vintage pencils may have minor flaws due to age and that you can expect the erasers to not work anymore. The pencil you will receive will not necessarily be the one in the photo but definitely one from the same dozen. We've tried our best to accurately capture the quality of the pencil and promise not to sell you something of lesser quality.