Untitled (adhered photocopy of sketch of "Davy-Lampe," left page); Untitled (adhered photocopy of notes and design for mining lamp sculpture, right page)

Black, blue, and yellow crayon ; graphite on paper

Graphite and blue crayon on paper

Black and green crayon on paper

Graphite with green, blue and yellow crayon on paper

Mixed media

Colored marker (transfer) on paper

Black marker on paper

Colored marker on paper

Black and red marker on paper

Graphite on paper

Graphite on tan wove paper, folded

Graphite and blue crayon on paper