Joseph Mallord William Turner, one of the finest landscape artists, whose work was exhibited when he was still a teenager.

OIL PAINTING ON CANVAS, SHOWING SEASCAPE (view in black and white)

The painting contains the following signature in the bottom left portion of
the canvas: "J M. W Turner RA. " Painting technique is complex.
It is oil on canvas with a very fine and close weave.
The preparation layer is white and quite thin.
The color has been painted on in thin layers, creating transparencies and sfumature.