The Vintage National Washboard Co No 703 Wood Lingerie The Zing King is a small hand washboard made of wood and metal coated zinc. With dimensions of 18" x 9" x 1", this original Americana-style piece is a collectible item from the United States, specifically Memphis, Tenn. Produced by National Washboard, this antique washboard is a unique and nostalgic piece that adds character to any primitive or antique collection.