I took my wife great great grandfather Georg Siebert glass negative artwork from 1964 and turn into color used photoshop to added in all the color use Ai. Most of her family has never seen the photo in color till now. Most of the artwork was distorted during WW2 and we only had the glass negatives. He was a German Artist - 1896-1984- photo has my wife great great mother and great mother in the picture.