"Newport R.I. (H. Farrer c. 1870) Fort Adams". 
"Foreground water a little deeper shade of horizon color, with the blue of the upper sky in ripples." "Sky much stronger and warmer, warm grey at horizon." "The whole thing should be two or three degrees lower in tone." 
Watercolor looking over Newport Harbor towards Fort Adams. Subtle palette of blues, greys, greens, and tans is used. Artist's notes about color are in the image.