Historical pigment (cinnabar, orpiment, lapis lazuli or lamp black) in gum tempera on watercolour paper. Box: Cardboard lined with wool felt (inside) and bookcloth (outside), acrylic; folder of card, bookcloth and linen thread with brass closure.

32 x 32 x 4 cm (12.6 x 12.6 x 1.57 in)