LEFT: From the estate of Francis J. Whitney comes this silver hair comb made by Alexander Calder himself, c. 1948. The work is registered in the archives of the Calder Foundation, New York, under application number It sold for $55,000. RIGHT: An African ivory comb from the Tshokwe tribe, composed of three tiers of intricate openwork, geometric design above the flared shoulder and thin tines; varied creamy patina. It is listed in Robbins and Nooter 1989: 549, figure 1491. Price Estimate: $2000 to $3000.