Two Studies for the Angel Gabriel in "Annunciation," Boston Public Library; verso: Studies for "Crucifix," Boston Public Library

Graphite on paper

Black chalk and watercolor on off-white wove paper

Transparent and opaque watercolor on white wove paper

Graphite on off-white wove paper

Watercolor on cream wove paper

Mixed media on paper

Charcoal on blue laid paper, faded

Black marker on graph paper

Ink on paper

Graphite on paper

Graphite on off-white wove paper

Ink on tracing paper