Related Clues:

• Pretty fast, on the highway
• Highway limit, perhaps
• It may be over the limit
• Pretty fast, on the freeway
• Highway speed limit, perhaps
• Common speeding speed
• Interstate speed limit, often
• Three score years and ten
• LXX
• Number like every other number ringed by pen
• Figure quits in home of Napoleon?
• Old record of what happens, unoriginally, in case of bad eyesight
• Contributing to innings — even, typically, a score above 50
• Ytterbium's atomic number
• Figure something happening in outskirts of Sydney