Artifact Details


526 printing summary punch

Catalog Number



Physical object


This unit has an input card feeder in the upper right of the unit. Cards are fed downward into a slot for punching. They then move to the left to a registration slot and then left again to the output hopper. There is a drum card to control formatting of the cards behind a window in the center of the unit. There is a QWERTY keyboard in the center of the desktop with 4 on/off toggle switches labeled "AUTO FEED," "AUTO SKIP/AUTO DUP," "PRINT," and "INTERSPD/INTER PCH." A round red sticker is on the REC button. A printed sign attached to the keyboard reads "1. Type name 2. Hit red dot twice 3. Retrieve card from hopper." Below the desktop on the left is a door to a slot for a programming plugboard. Directly under the keyboard is space for a missing chad drawer. There are also 3 dials with "fuse" written on them. On the right side is a red on/off switch. A removable door on the back covers a rack of relays. A pack of punch cards and a customer engineering incident reporting logbook are attached.


ca. 1964


International Business Machines Corporation (IBM)

Place Manufactured


Identifying Numbers

Model number 526 On sign on top front of unit and on manufacturer's metal label on right side of unit.
Serial number 13940 On metal label on right side of unit and handwritten on the in process slot where a card is actually punched.


overall: 38 in x 31 1/2 in x 28 1/2 in


I/O/punched card device


Gift of Lawrence Livermore National Laboratory (LLNL)

Lot Number