Research Project on Economical Apartment Design, 1930: Building type IIIb: first-third floor plans, 1:50

Graphite and red pencil on paper

Black and red marker on paper

Black crayon on beige wove paper

Graphite on paper

Ink and wash on paper

Mixed media

Ink, crayon and watercolor on paper

Graphite on paper

Blue pen on invitation card, adhesive, and colored marker on paper

Graphite on paper

Black crayon on paper

Watercolor and black ink on cream wove paper, mounted to white card