Royalty Free Whistle Stock Retro Clipart Illustrations

1. 

   Retro Business Man Whistling and Walking
2. 

   Retro Steam Whistle
3. 

   Retro Silhouetted Referee Umpire Blowing a Whistle over a Blue Banner
4. 

   Retro Silhouetted Referee Umpire Blowing a Whistle in a Blue and White Shield over a Banner
5. 

   Retro Silhouetted Referee Umpire Blowing a Whistle in a Red and White Shield over a Banner