early 19th century | watercolor on paper
1800s | Ivory
late 19th century - early 20th century | gelatin silver process
1836 | watercolor on paper
late 19th century - early 20th century | Wood, iron, modeling compound (likely air-dry Permodello) paint, resin.
1941 | gelatin silver process
late 19th century - early 20th century | paper