‘‘When I was a small boy, my grandmother challenged me to find a secret drawer in a bureau that she treasured,” says David Linley, the renowned British designer and a grandson of the Queen Mother. “I couldn’t understand how it was possible to conceal something so cleverly, so I resolved to find out how.” The Tectonic Bar (www.davidlinley.com) is the latest manifestation of Linley’s fascination with mechanical furniture, a design genre that was the vogue of the 18th century. This contemporary interpretation by Linley’s eponymous furniture-making firm appears to be simply an elegant cabinet of ebonized walnut incised in gold leaf with an abstract map of the world. But at the press of a concealed button, the doors open to reveal an interior lined in gold leaf and housing a cocktail bar outfitted with Linley accessories. Internal columns rotate; a refrigerator appears in the base of one column, and the press of an interior button summons a cigar humidor. Should prospective owners of the Tectonic Bar (approximately $130,000) require secret drawers of their own, Linley—which allows any number of variations—will enthusiastically oblige.