the first depicting a large recumbent toad, the underside inscribed with a two-character maker's mark; the second a toad on a tree trunk, the underside bearing a two-character mark, 玉石; the third a frog resting on a section of tree branch, inscribed to the side with a three-character maker's mark; the fourth depicting two confronting mythical beasts above a large bell, inscribed to the underside with a two-character marker's mark, 正逍.