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

The Dioscuri on Monte Cavallo (recto); Study of a Spiral Staircase (verso)

Maarten van Heemskerck (d. 1574)

ca. 1533 · Pen and brown ink

Study of a Tulip ('t roosje)

Pieter Holsteyn II (d. 1673)

c. 1645 · Drawing, Point of brush and transparent and opaque watercolors with traces of graphite and gum glazing on antique laid paper

Study for the Allegory of San Gimignano and Colle Val d'Elsa

Jacopo Zucchi (d. 1596)

1563 · Pen and brown ink, highlighted with white gouache, traces of squaring in black chalk (on top of drawing surface), over traces of black chalk on blue paper

Study for a Frontispiece

Willem Pietersz Buytewech (d. 1624)

1621 · Pen and brown ink, brush and gray wash, and black chalk

Study of a Bearded and Turbaned Man Carrying a Chest

Pieter Lastman (d. 1633)

ca. 1625–30 · Red and black chalk, heightened with white chalk, on yellow-orange prepared paper; framing line in red chalk, by the artist

Portrait of a Woman; (reverse, now covered by relining canvas) Study of a Child's Head

John Hoppner (d. 1810)

1790s · Oil on canvas

A French Dragoon, Study for "The Revolt of Cairo"

Anne Louis Girodet-Trioson (d. 1824)

ca. 1809 · Pastel and conté crayon, with some stumping, on gold-colored dyed laid paper

[The Averted Head - A Study in Flesh Tones]

Joseph T. Keiley (d. 1914)

1899 · Platinum print

Study for a Portrait of Mathilde Salle

Edgar Degas (d. 1917)

modeled ca. 1892, cast 1920 · Bronze on black marble base

Study for a Portrait of Mathilde Salle

Edgar Degas (d. 1917)

modeled ca. 1892, cast 1920 · Bronze on black marble base

Study of a Mustang

Edgar Degas (d. 1917)

modeled possibly before 1865, cast 1920 · Bronze

Study for Untitled (Man Reading Smoking a Pipe on a Veranda)

Edith Lawrence (d. 1973)

date not published