 The standard punched card code for the groupmark character on the IBM 1401 computer system used punches in rows 12, 7, and 8 of a card column (written as 12-7-8).The older IBM 705 computer used 12-5-8 for this character.An RPQ was available for the 1401 for compatibility that allowed the system to read or punch the 705 code rather than the standard code.