We have all three types of collagen:
Collagen type I - can be found in skin, tendons, ligaments, bone, teeth, intervertebral disks, and scar tissue.
Collagen type II - is found mainly in articular and hyaline (coating on bones) cartilages, and in the eyes.
Collagen type III - is seen in the muscles, intestinal walls, and blood vessels. Collagen III is also closely associated with Collagen type I, thus it is common to see Collagen type III at sites with Collagen type I.
For more info refer to the source: http://theydiffer.com/difference-between-collagen-1-2-and-3/