An unusual Russian porcelain sauceboat Imperial Manufactory

An unusual Russian porcelain sauceboat Imperial Manufactory, St Petersburg in the reign of Nicholas I (1825-55), modelled in the manner of a carved Chinese libation cup with prunus branches, rocky mountains and ruyi cloud scrolls, raised on three feet, decorated in gilt and white on a turquoise ground, the interior rim decorated with a formal leaf border, underglaze blue factory mark, 18.8cm.