A painting can be out of copyright and thephotograph of it can still be protected.

Study for The Allegory of Spring

Federico Zuccaro (Zuccari) (d. 1609)

1579 · Pen and brown ink, over red chalk and black chalk, brush and brown wash, highlighted with white gouache

Study for an engraving in the Hortus Voluptatum

Crispijn de Passe the Elder (d. 1637)

1599 · Pen and brown ink, brush and blue wash, over black chalk. Incised

Autumn; Study for an Engraving

Hendrick Goltzius (d. 1617)

n.d. · Pen and brown ink, brush and red-brown wash, over black chalk, heightened with a little white gouache

Study for Angels Sealing the Foreheads of the Children of Israel in Saint Peter's Basilica

Pietro da Cortona (Pietro Berrettini) (d. 1669)

1652 · Black chalk, brush with brown and gray wash, highlighted with white gouache, on three sheets of brownish paper glued with overlapping joints

The Circumcision, Study for an Engraving

Ciro Ferri (d. 1689)

1634–89 · Pen and brown ink, brush and brown wash, highlighted with white, over black chalk

Study for an engraving: "Almanac pour l'an de Bissexte M.DC.XCII: La Lotterie Chimerique d'Augsbourg où chacun met du sien sans proffit"[sic]

Anonymous, French, 17th century (d. 1700)

Late 17th century · Pen, brown ink, brown wash over black chalk; the contours traced and indented for transfer by a stylus

Historical Scene: Study for an Engraving

Anonymous, Italian, 18th century (d. 1800)

18th century · Pen and brown ink

Study of Hands for "Christ Among the Doctors"

Jean Auguste Dominique Ingres (d. 1867)

1852–62 · Graphite on tracing paper

Study of Arms for "The Cadence of Autumn"

Evelyn De Morgan (d. 1919)

1905 · Graphite and pastel

Study of Arms for "The Cadence of Autumn"

Evelyn De Morgan (d. 1919)

1905 · Graphite and pastel

Remote Temple on the Autumn Mountain

Chen Hengke (d. 1923)

dated 1920 · Folding fan mounted as an album leaf; ink and color on alum paper

Study for Talmont

Ellsworth Kelly (d. 2015)

1951 · Graphite on paper