1977 | casein on board
late 20th century | oil on board
1935 - 1989 | ink on scratchboard
19th century | ivory, ink
circa 1945 | walnut wood
1800s | Ivory
late 19th century | metal and bone
early 20th century | stone, bone, plaster, paper
late 19th century - early 20th century | metal, stone
