An alternative , the slashed zero -LRB- looking similar to the letter O except for the slash -RRB- , was primarily used in hand-written coding sheets before transcription to punched cards or tape , and is also used in old-style ORGANIZATION@1 graphic sets descended from the default typewheel on the MISC@1 .

The slashed zero , looking like the letter O with a diagonal line drawn inside it , is used in old-style ORGANIZATION@1 graphic sets descended from the default typewheel on the venerable MISC@1 .
