"The School-Girl's Hymn" by the Pre-Raphaelite painter William Holman Hunt, described as a "pot-boiler" by the Ashmolean (presumably on Holman Hunt's authority!), shows "'a girl going to school in a smiling summer Sunday morning, singing her hymn as she walks along'. The model was Miriam Wilkinson, a labourer's daughter Hunt met while staying with Thomas Combe at a farmhouse near Hastings in Kent in 1858." It is rather unusual in clearly showing the sitter wearing a knitted garment -- two in this case, as she has a knitted muffler as well.
Since a significant characteristic of the Pre-Raphaelites was an intense realism, it comes as no surprise that the stitch used in the girl's jacket is meticulously depicted, almost certainly brioche stitch. A similar jacket pattern is the one below, from The New Guide to Knitting & Crochet by Marie Jane Cooper (Cooper, 1847).
Note that the number of stitches to cast on should be 225, not 25.
A POLKA COAT, FOR A CHILD.
Cast on twenty-five [sic, 225] stitches, which will make seventy-five ribs, in the Brioche stitch, which is done by bringing the wool forward, slipping a stitch the purl way, and knit two together; bring the wool forward, knit twenty-four rows, or twelve turns of white; then commence the scarlet, by leaving eighteen stitches on each side, knit twenty-four rows, or twelve turns of scarlet; then begin to take in, which is done by knitting the first thirty on each side, without decreasing; then bring the wool forward, slip one stitch, and knit five together; repeat this till within thirty on the other side, which, knit without decreasing, until you have only forty ribs, or one hundred and twenty stitches; knit forty-eight rows, or twenty-four turns, in this manner, still leaving the white on each side; put thirty stitches on another needle for the front, knit those backwards and forwards for thirty-six rows, or eighteen turns; then knit all the stitches but one rib, turn back, and finish the row, and so on, leaving one rib more each time, till it is the proper length for the shoulder. Cast off, but be particular that the slanting side is not in front; finish the other side in the same way, then take up the stitches for the back; knit thirty-six rows, to correspond with the fronts for the arm-hole; then knit backwards and forwards, leaving one rib each way, until it is the same length as the slanting part in front, which are to be joined together; cast off; now take up the white stitches on each side, and knit till it is long enough to go up the sides; for the sleeves; cast on seventy-two stitches, knit thirty rows, then twelve more, leaving one rib on the one side to form the wide part; for the collar; cast on seventy-six stitches, and knit twelve rows, leaving one rib on each side; then sixteen rows of white; cast off; cast on eighteen stitches for the cuff, and knit till it is long enough to go round the bottom of the sleeve; twist a cord of the same coloured wool, and put in the waist behind, with a tassel at the ends; the same under the collar. These may be done in four-thread fleecy, but they look much better in double Berlin wool, No. 9 pins, by the Eagle gauge. For a lady's, you must cast on stitches in proportion, and larger pins.
Another online version of Cooper's book is available through Google Books.