Related Clues:
- B'way producer's favorite sign
- Sellout warning (Abbr.)
- "No more seats!"
- Three, proverbially
- Sign of a hit
- Broadway sign
- Capacity description
- Broadway smash letters
- Like a transient's qtrs., maybe
- Box office abbr.
- Capacity descriptor, briefly
- Broadway latecomer's sign
- Box office sign
- Box office warning
- Broadway letters describing a hit show