Related Clues:

• Mommies have three but dummies only have two
• Stationer's 500
• Penny has two
• Ambulance grp.
• Two for dinner?
• Print shop purchase
• Half ems
• Nixon's beginning and end
• Printing unit
• Mil. officer
• Typesetter's unit
• Dummies have two and mummies have three
• Part of an inch
• Paper measure
• USNA grad, e.g.