흑심 BLACKHEART

Vintage IBM Electrographic

Brand : IBM

Barrel Shape : Round

Pencil Type : Standard Ferrule

Production Date : Circa 1960s

Made in U.S.A.

The IBM 805, the first test scoring automation machine, was developed in 1938,

and the IBM Electrographic pencil is a computer pencil designed specifically for IBM 805 machines to recognize marks.

IBM Electrographic is made of ultrafine graphite, which is highly conductive and easy to read by the machine,

and is less powdery because it does not wear easily compared to its thick and soft handwriting.