Untitled (notes and date, left page); Untitled (adhered b/w photocopies of "Davy-Lampe" and design for mining lamp with sketch design of mining lamp sculpture, right page)

Black marker on paper

Blue marker and black pen on paper

Black, gray and blue crayon on paper

Mixed media

Tusche and graphite on paper

Paper

Black marker on paper

Colored marker on paper

Watercolor on paper

Graphite on paper

Gray marker and adhesive label on paper

Graphite on paper