Note:

I'm a bit confused about this painting. I found another image from Jim's Fine Art called Spanish Fountain (same image as this and they had it listed at the Brooklyn Museum:

Spanish Fountain

1902

Brooklyn Museum, New York

Watercolor

34.4 x 48.6 cm  (13 9/16 x 19 1/8 in.)

Both images are of the same painting. This painting at the Met I KNOW is correct because I know where this image came from.

Sargent did a number of paintings of Spanish fountains. There may in fact be another watercolor at the Brooklyn Museum. I just don't know.