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The ‘Tree of Knowledge of Good and Evil’ clock designed and manufactured by Vladimir Makovsky for Black, Starr & Frost, circa 1930. Photo courtesy of Patrizzi & Co.

Its singular design depicts its namesake tree in 18kt yellow gold and platinum, malachite, mother-of-pearl, coral, lapis lazuli, black onyx , rock crystal and diamonds.
It sold for $340,000 in 2009 at Patrizzi & Co. sale of Exceptional Watchmaking Masterpieces.