For those who like to study photos of brindles, Natal Clasi is pretty remarkable. The lighter 'stripes' are silverish/grey up close, not white. Just click on small pics to see them large.
I know he's not full TB, but he's close enough that Jorge will find him of interest!
A variety of other equine-related photo galleries are posted, too... www.photoshelter.com/c/barbaradlivingston
Now we only need photos by Barbara of a genuine roan (R gene) Thoroughbred, descending from Catch A Bird.)