Free images results:

Signs pictures, stock photos and images


Warning Stock Photo
Author: Marilyna
X file Stock Photography
Author: Jyothi
Blue hook Stock Photography
Author: Jyothi
Keyboard Royalty Free Stock Images
Author: Unicum
Keyboard_1 Stock Photo
Author: Unicum
Code Royalty Free Stock Images
Author: Lizzard2012

Also, here are some commercial RF-licensed images that match your search criteria:  
X & V signs Stock Photos
Author: N.l

Explore more commercial options: More Signs Stock Illustrations & Vectors | More Signs Stock Video Footage