Chicago, Olson Rug Factory, waterfalls and rock garden
We would call this an old ad card in the style of a not-ad card. The long caption focuses on the park and not the factory, yet the card was issued by the company itself. We have two of these unused cards. One has faint creasing throughout (Grade: 3, $1) and the other has a name pencilled in the message area (Grade: 3, $2).