Related Clues:
- 'Keystone' group of silents
- One of a silent force?
- Stage of a football choir
- It used to be a man mountain at Anfield
- High football terrace
- Football stand quiet after start of game
- Keystone force
- Keystone policeman
- Keystone
- "Keystone" lawman
- Keystone ___ of early film
- Sennett staffer
- Keystone 'officer'
- Mack Sennett's Keystone ___
- Keystone ___ (silent films policeman)