The 'Penguin' cocktail shaker is a very famous modern design introduced in 1936 by the Napier Company from Meriden, Connecticut. Designed by Emile A. Schuelke, this large, whimsical shaker features a streamlined art deco body with attached bold features such as a shaped foot, graceful handle, wings and hinged beak which acts as the pouring spout - complete with the stopper and strainer on the inside.
For more information, see the chapter 'Prohibition and Cocktail Shakers' in Modernism in American Silver by Jewel Stern.
This wonderful silver plate cocktail shaker is marked underneath 'NAPIER/PAT D-101559'. It measures 12.25 inches tall, has been resilvered and is in excellent condition.