Related Clues:

• How some numbers were entered, once
• Chopper blades
• Dash array
• Tuning knobs
• Old TV parts
• Blades of choppers
• Alternatives to buttons
• Some controls
• Retro phone features
• Finger hole sites on old phones
• Watch faces
• Former phone features
• Dashboard features
• Chopper spinners
• Copter blades