Rare Vintage NAEF Swiss Made Wood Hippo Nesting Puzzle. Designed by Naef Spielzeug. Signed NAEF SWISS MADE as pictured. Vintage wooden puzzle in the form of hippos. One mommy hippo and 5 babies that nest inside. Measures approximately 7.5 inches long x 3.5 inches high x 1 inch wide. In overall excellent condition, a few surface scrapes but nothing major. Era, Mid Century Modern. Item ships within 24 hours (except for holidays and weekends). From a smoke free and pristine environment. These charges are the buyers responsibility. The item “Rare Mid Century Modern Swiss Vintage Wood Naef Spielzeug Hippo Nesting Puzzle” is in sale since Saturday, April 6, 2013. This item is in the category “Antiques\Periods & Styles\Mid-Century Modernism”. The seller is “obx104″ and is located in Winter Park, Florida. This item can be shipped worldwide.