PIECE OF OBSIDIAN FROM CNIOUS RECD 1909

THREE OBSIDIAN CHIPS FROM PAROS RECD 1909

FRAGMENT OF GYPSUM FROM KNOSSOS

26 Fragments of Ancient Marble

Uncarved Gem

Unidentified culture

GEOLOGICAL SPECIMEN

Letter describing Caravoglia's design for "Circumcision" painting

Bernardo Marenco

Wall painting fragment

Roman

Plaster of Paris. Calcium Sulphate

Ground Gypsum, Terra Alba

Manufactured by U.S. Gypsum Co.

Gypsum from Alabaster (Terre Alba)

Manufactured by U.S. Gypsum Co.

Competition Entry for Model Housing Development, Berlin-Spandau-Haselhorst, 1928-1929; Original of BRGA.37.2

Unidentified Artist

Deposit of Lime Carbonate from an aqueduct

Postcard from the Studio for the First Amendment, 1943 - 1987

Christopher Wilmarth

Autograph: "Yours most truly John Constable", 1776 - 1837

John Constable

One of three pieces of lava

One of three pieces of lava

Manuscript Table of Contents, 1654 - 1742

Compiled by Jean Mariette

Photographs of Wilmarth picketing Andre Emmerich Gallery, 9/23/1978, 1943 - 1987

Christopher Wilmarth

Artist's documents: "The True Story of the Gift of the Bridge," 1973 and 1977, 1943 - 1987

Christopher Wilmarth