Signed 'Constant,' bottom right in black pencil

Signed Constant, bottom right in sepia watercolor

Signed and dated Voor Paul, 14-4-72, Constant, bottom center in ink

Signed and dated Constant ‘88, bottom right in black pencil

Signed and dated Constant '87, bottom right in brown pencil on brown fond

Signed Constant, bottom center in red/brown pencil

Signed Constant, bottom right in black pencil

Signed and dated, Constant '88, bottom right in black pencil. Titled "ORPHEUS", bottom center in black pencil.

Signed Constant, bottom left in black pencil. Titled Die Winterreise, bottom right in white pencil.

Signed Constant, bottom right in ink