Sequence of six proof impressions aside the edition of 100. All signed and inscribed 'trial' except one inscribed 'A/P'. One trial proof printed in blue on white paper; one trial proof printed in black on blue paper; two trial proofs printed in black on white paper; one trial proof printed in black on celadon green paper; one artist proof printed in turquoise on white paper.

Literature: Engberg Banach 56.