Window with Trefoil Design, Palazzo Vecchio, Florence, Italy

Watercolor over graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Crayon on paper

Transparent and opaque watercolor on off-white wove paper

Graphite on cream wove paper laid down to off-white wove paper

Tempera on purple construction paper

Graphite on paper

Charcoal on blue laid paper

Oil on tracing paper

Charcoal on cream laid paper

Watercolor and graphite on white wove paper

Black, brown, blue and purple crayon on paper