Crossword clues for Mark on a ruler:INCHRuler markingREGALIARuler markings?ERASThey might be marked by rulersINCHLong mark on a rulerERAPeriod often marked by a rulerINCHESMarks of a rulerONEINCHMark of a rulerINCHMark of a ruler?INCHMark on a rulerINCHMark of a good ruler?DOGERuler with a palace near St. Mark's