0,Albumen photograph
1,Bronze
2,Ceramic
3,Clay
4,Engraving
5,Etching
6,Faience
7,Glass
8,Gold
9,Graphite
10,Hand-colored engraving
11,Hand-colored etching
12,Iron
13,Ivory
14,Limestone
15,Lithograph
16,Marble
17,Oil on canvas
18,Pen and brown ink
19,Polychromed wood
20,Porcelain
21,Silk and metal thread
22,Silver
23,Steel
24,Wood
25,Wood engraving
26,Woodblock
27,Woodcut
28,Woven fabric