Pitt Artist Pen Brush India ink pen
warm grey III
cold grey VI
Albrecht Dürer watercolour pencil
warm grey I
warm grey II
warm grey IV
Pitt Pastel pencil
cold grey IV
cold grey I
warm grey V
Polychromos colour pencil
230 cold grey I
232 cold grey III
235 cold grey VI
270 warm grey I
231 cold grey II
233 cold grey IV
234 cold grey V
274 warm grey V
271 warm grey II
272 warm grey III
273 warm grey IV