In 1862 John Ruskin removed what is now this separate sheet from what had been a larger one. This was to allow the display of the more finished watercolour study of four fish on the sheet in a smaller frame (Tate D25462; Turner Bequest CCLXIII 339). Ian Warrell has noted the connection between the partially seen drawing of a fish’s head to the centre right of this sheet and corresponding pencil lines to the left of the larger.1 On close examination very slight pencil marks can be seen on the left edge of the latter that correspond to those on the right of this one.
In addition to the pencil study of a fish’s head, which is perhaps an earlier sketch of the fish seen on the upper left of the more finished group, this sheet also includes tests that appear to relate to the colours used there.
Warrell 1991, pp.26–7.
When seen alongside the sheet that Ruskin cut this piece from (Tate D25462; Turner Bequest CCLXIII 339), the paper appears discoloured by comparison. The watermark runs across both sheets, the majority of it now seen on this smaller sheet. A horizontal pencil line running along the top of both this and the other sheet suggest that both may have been cut down from a still larger sheet, possibly also by Ruskin.