Related Clues:

• Peter, Patrick and Paul: Abbr.
• Cockpit guesses, for short
• Letters from Crete
• Greek vowels
• Zeta followers
• H look-alikes
• Bases for some IRT stop names
• SFO info
• Block boundaries: Abbr.
• Some are numbered in NYC
• Letters of Zeno
• Airport info
• Rte. parts
• 10th, 20th, 30th, etc., in N.Y.C.
• Terminal info