“DA QING YONG ZHENG NIAN ZHI”SIX-CHARACTER SEAL MARK AND OF THE PERIOD（1723-1735） Of cylindrical form, brightly enamelled to the exterior with gilt outlines, depicting eight treasures pattern，four panels with gilt rim on the body ，each decorating a landscape painting and a poem.The interior and base are also covered in turquoise enamel，and the rim gilt.