Antiques + Modernism Winnetka, a marriage of the Winnetka Antiques Show and the Modernism Show, is this weekend, October 18-20. The union (well, to be exact, it’s the third anniversary of this union) brings together design from the 17th century up to the mid-20th century, with dealers from across the country selling American, British, French and Asian antiques, as well as pieces from the Arts and Crafts, Art Nouveau, Art Deco and Mid-Century Modern movements.