A coding sheet designed by IBM for the IBM 1401 Symbolic Programming System. The card provides space for up to 55 columns of characters to be filled in by the programmer, each containing a line number, label, operaion to be performed, up to two addresses for the operation and a comment. Each line of the form’s table represents a punched card that would be produced from this coding sheet, with space for 26 rows of instructions to be punched from each sheet.
The sheet forms a pad with several dozen identical coding sheets remaining. Originally, pads of several hundred sheets would have been issued to programmers which could be filled out, peeled off the pad and submitted to a keypunch operator to be punched onto IBM 80-column punched cards. These could then later be processed by an IBM 1401 to execute the new program.