A rare iron-red 'crane' square dish mark and period of Jiajing

of rectangular form with steeply angled sides sitting on a short foot, the interior enamelled in iron-red with four cranes in mid-flight amid cloud scrolls around a central circular medallion, all within double line borders, the sides decorated with four cartouches enclosing the trigam elements, either heaven, earth, fire and water, divided by cloud scrolls, all between double lines, the exterior similarly decorated with cranes flying amid cloud swirls, the base with a six-character mark in underglaze-blue