Lithograph on paper. Featuring lips with mirror-image of question mark. Signed R. Indiana and inscribed '06 on the lower right corner. Inscribed 16/200 on the lower left corner. Inscribed VI / RI-751 and stamped INTERNATIONAL IMAGES NEW YORK on verso. Attributed to Robert Indiana (1928-2018, American). 21 x 28.5 cm (8.25 x 11.25 inches)

All lots that do not carry established documented provenance nor any past record of auction history record are described in the catalog as attributed .

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Signed [Artist Name] : In cases in which the signature is legible in the lot, this work is described as-is with no attributions given.

By [Artist Name] : The work is by the artist.

Attributed to [Artist Name] : The work may be ascribed to the artist on the basis of style, but there may be some question as to actual authorship.

In the manner of [Artist Name] : The work was executed by an unknown hand, but was designed deliberately to emulate the style of the artist.

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American, 19th century : This work was executed by an unknown hand, and can only be identified by origin (i.e., region, period).