St Paul Viscosity Oil Co Salesman & Donkey Real Photo Advertising Postcard

This postcard served as an advertisement for the Viscosity Oil Co. of St. Paul, Minnesota, likely dating to the early 20th century. The image features a smiling man alongside a donkey, with an overturned barrel labeled Viscosity Oil Co St Paul Viscosity Cylinder resting on a simple sledge, implying a delivery mishap. The overlaid text, Now You Know Why I Am Late Mail Me Your Order Don't Wait, uses humor to engage potential customers and encourage immediate orders.