Gray Dawn is near to my heart because we also have a Blue Merle Collie, CH Decor's Gun Smoke aka Dillon.
Gray Dawn was born on a gloomy morning at Sunnybank, the home of Albert Payson Terhune and Anice Terhune. He was a troublemaker and Terhune wanted to get rid of him. But he also had a hero's heart and turned out to be a fabulous collie dog.
I colored the black and white photo of Gray Dawn some years ago, and had dye sublimated it on wood for a friend who absolutely loves all things Sunnybank, but particularly Gray Dawn! Hi Marilyn!
Here is a phot of Dillon.