A blue and white 'lanca character' stem cup

Reference: ART1001850

The stem cup is decorated on its exterior flaring sides with eight 'lanca characters' and lotus flowers issuing acanthus leaves and stylized blossoms, the stem foot with a band of ruyi-head motif and flower sprays. The interior of the cup further painted with a stylized peony medallion. The base with a Qianlong seal mark.