Related Clues:

• NYC commuting option
• Its first line went from City Hall to 145th St
• N.Y.C. subway letters
• Seventh Ave. subway line
• NYC line that stops at Yankee Stadium, familiarly
• NYC subway inits
• Old N.Y.C. depot inits
• NYC’s original subway operator
• Old N.Y.C. subway inits
• N.Y.C.'s first subway line