Four Andrew Clemens sand bottles spanning the iconic artists career will headline Hindmans American Furniture, Folk & Decorative Arts auction on March 30. FENIX Collection, Rotterdam.ĬINCINNATI, OH. Oil painting on panel (oval) 15.5 x 12 cm. Jan Adriaensz van Staveren (Leiden 1613/14-1669 Leiden), A set of tronies of a young man of African origin in oriental costume and a young man of African origin wearing a yellow feathered beret, circa 1640-43. Less than a year later, the second live auction will be entirely devoted to modern and contemporary art and will take account of the international art metropolis on the Rhine, which is characterised by a high density of collectors and institutions of modern and contemporary art. 'Last spring, we celebrated the legacy of Karl Lagerfeld, the legendary haute couture icon, with our first live auction at the Palais Oppenheim in Cologne, which attracted the enthusiasm of customers all over the world. This makes Sotheby's the only international auction house to offer its entire auction portfolio, live and online, in Germany. Sotheby's Germany launches the auction series this spring with a LIVE auction orchestrated from the Palais Oppenheim in Cologne. Over the last 11,500 years or so, the stone has been fashioned into deadly knives, raz. MacDonald, a professor of anthropology at the University of Montana and the author of ∻efore Yellowstone: Native American Archaeology in the National Park. Obsidian is among the most prized tool stones in the world, and this particular deposit, nearly 100 feet thick, is exceptional because of its continual use by Indigenous people since the last ice age.

Known as Obsidian Cliff, the Yellowstone mountain is one of the countrys highest quality deposits of the sharpest natural substance on Earth, according to Douglas H.

Spanning more than 5 square miles, the dark, sometimes translucent mass was formed from a rhyolitic lava flow that oozed out of the magma chamber of Yellowstone Caldera beneath the park, and cooled rapidly in the bitter cold of a glacial maximum, about 180,000 years ago. Near the north entrance, an imposing mountain of black glass rises against the blue sky. Modern technology has allowed researchers a glimpse at the reaches of the prized stone of the Yellowstone landmark Obsidian Cliff. Elizabeth Horton, an archaeologist for Yellowstone National Park, at the park in Gardiner, Mont., Feb.

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