Advertising Insert Card, Bird. Multi. Cardstock. This chromolithographed card shows a Magpie, No. 6. It is signed, "Hy. Hintermeister." It is copyrighted, 1908 by Church & Dwight Co. It contains the Dwights Soda Cow logo. The reverse advertises Series A "New Series of Birds." It gives the description of the bird and the product.