Albert Bierstadt, Wind River Country Wyoming, ca. 1860, oil on canvas, 28 1/4 x 39 1/2. Estimate: $1,000,000-$2,000,000.

Albert Bierstadt, Wind River Country Wyoming, ca. 1860, oil on canvas, 28 1/4 x 39 1/2. Estimate: $1,000,000-$2,000,000.

Albert Bierstadt, Wind River Country Wyoming, ca. 1860, oil on canvas, 28 1/4 x 39 1/2. Estimate: $1,000,000-$2,000,000.

Albert Bierstadt, Wind River Country Wyoming, ca. 1860, oil on canvas, 28 1/4 x 39 1/2. Estimate: $1,000,000-$2,000,000.

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