Collection of 17 advertising signs issued by the Church & Dwight Company, in promotion of it's Arm and Hammer Baking Soda product. Beginning in the late 1880s and continuing for decades afterwards, the company began the practice of inserting trading cards of birds, fish, flowers, dogs, etc. into its boxes of baking soda to help promote the brand. Later, during the 1900s, the company issued retail signs picturing enlarged images of the cards, which merchants could hang in their stores to help increase sales. (Jefferson Burdick assigned the retail signs the reference number ‘H681’ in his American Card Catalog.) This collection is composed of 17 Arm and Hammer retail signs - 13 picture birds (3 are duplicates, one has a trimmed border), two (2) dogs, one (1) fish and one "1" giraffe. Based on the copyright dates listed along the base, the collection spans the years 1901 to 1918. In addition to the illustration, each sign bears the "Arm & Hammer Soda" name along the top, as well as a box of Arm & Hammer baking soda in a bottom corner. With the exception of the one trimmed sign, each is approximately 11.25 x14.5“ and displays a varying degree of wear commensurate with its age, former use, and fragile nature. Most of the wear, as expected, shows along the border area and includes chips, tears, and creases. The collection overall presents in very acceptable VG or better condition. Bid and win this grand collection of 17 signs, all of very popular and colorful subjects, from the early 20th century.