Free images results:

Colt pictures, stock photos and images


Week Old Royalty Free Stock Images
Author: Hixnhix

Also, here are some commercial RF-licensed images that match your search criteria:  
Old colt Stock Photo
Author: Maystra
Colt Stock Image
Author: Terdonal
Brown colt Stock Image
Author: Chepko
Colt Stock Image
Author: Misad