Wood keros 

Caption

Import restricted since 1997.

Section V.A of the Designated List.

V. PRE-COLUMBIAN PERISHABLE REMAINS
A. Wood
Keros (Beakers)--The most common form is a bell-shaped beaker with a flat base, though some have a pedestal like a goblet. Decoration varies with the period:
Pre-Inca: Very rare, they have straight sides and incised or high- relief decoration. Some have inset shells.
Inca: Generally they are incised with geometric designs on the entire exterior.
Colonial Inca: Lacquer painted on the exterior to depict scenes of daily life, nature, and war.
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Example shown: Inca.