Royalty Free Knob Stock Retro Clipart Illustrations

1. 

   Retro 3d Steampunk Styled Handles Knobs Screens and Switches
2. 

   Retro 3d Brass Media Player
3. 

   Retro 3d Silver Dial and Colorful Segments, on White
4. 

   Retro 3d White Dial and Colorful Segments