Martin Johnson Heade, Sunset: Sky and Marsh, 1867, oil, 12 x 28. Estimate: $700,000-$1,000,000.

Martin Johnson Heade, Sunset: Sky and Marsh, 1867, oil, 12 x 28. Estimate: $700,000-$1,000,000.

Martin Johnson Heade, Sunset: Sky and Marsh, 1867, oil, 12 x 28. Estimate: $700,000-$1,000,000.

Martin Johnson Heade, Sunset: Sky and Marsh, 1867, oil, 12 x 28. Estimate: $700,000-$1,000,000.

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