Sketchbook: Portraits/heads in the shape of buildings. Martin Luther, Kant, etc./Miner's lamp

Black crayon or charcoal on paper

Colored marker on paper

Graphite on paper

Colored marker on paper

Charcoal and colored crayon on off-white wove paper

Graphite on paper

Graphite on paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Black crayon on paper

Colored marker on paper