Related Clues:

• GI's lullaby?
• X, in Roman numerals
• Evening bugle call
• Number of sides in a 65-Across
• See 16
• See 13
• Number held in illegal detention
• Number over 15
• Downing Street address
• Base of decimal system
• Bill depicting the U.S. Treasury
• Decade
• Base based on our hands
• "I wouldn't touch it with a ___-foot pole!"
• Card complement in a standard Rorschach test