I don't know the maker of this bowl, but it is quite beautiful and impressive. From the top it has a loose triangular shape and beautiful graining. There are a few white marks on the outside that appear to be paint, but I can't be sure. Very light utensil marks on the inside.
In general, it shows very well. 14 7/8" across the top x 6 1/2" tall at it's highest. Check pics and enlarge as they are part of the description.