Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Location of weep holes: plans, elevation, and section (1/2" and 3/4" = 1'-0" )

Graphite on paper

Charcoal on off-white wove paper

Beeswax, graphite, detritus and debris on wove paper

Colored pencil on buff wove paper

Graphite on paper

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Black crayon on thin off-white wove paper

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Black ink on modern laid paper