WHITE GLAZED INCISED AND INSCRIBED RECTANGULAR-SECTION VASE SIGNED YI GONG, 19TH CENTURY the exterior covered in a white glaze with fine crackles, each of the two wider sides inscribed in bronzeware script with a poem, the narrower sides incised with 'The Four Gentlemen' prunus, bamboo, chrysanthemum and pine, the waisted neck incised with plantain leaves between keyfret-bands, signed Yi Gong 36.5cm high