LONDON.- As the warmth of summer becomes a distant memory, Christie’s autumn sale of 20th Century Decorative Art & Design on Tuesday 26 October features a particularly strong array of lamps and glass inspired by the beauty of nature, which can be enjoyed in any season from the comfort of home. The top lot of the sale is a Tiffany Studios Peony Shade, circa 1900 (estimate: £70,000-90,000). Other stellar examples by masters of the media range from works by Emile Gallé, Daum Frères and Argy-Rousseau and include a single owner London collection, formed in the 1960s with guidance from legendary American collector-dealer Robert Walker. Reflecting the power of line, important design is led by the timeless chic of a Charles Rennie Mackintosh painted oak dresser from 1900 designed for Dunglass Castle, Bowling near Glasgow, which is offered to the market for the first time having passed by descent (estimate: £30,000-50,000). Span