An antique Chinese hand carved from a natural shoushan chop seal with two frogs. The item with an elongated square shape. Below is smooth, at the top it has carvings with plant motifs, as well as two frogs on the sides. The bottom is smooth, it is possible to create your own seal. Circa: early 20th century. Shoushan stone carving is an art originating in Fujian Province in East China. The stones used in carving are also known as agalmatolite and are mined in the Shoushan village in northern Fujian. Antique and Vintage Asian and Oriental Carved Seals For Collectors.