The Maryland Zoo in Baltimore is generally considered to be the third oldest (or by some other circumstances, the second oldest) zoological park in the United States, having opened in 1876, sixteen years after the historic Park itself was purchased and opened to the city public. For a number of decades in the 20th century, it was operated and supervised by the Baltimore City Board of Park Commissioners, and organized in 1860 with the first major city park at Druid Hill and later the city Department of Parks and Recreation, through their subordinate Bureau of the Zoo.

This 1950's/60's Baltimore Zoo pennant measures 9" x 27" and features a mostly uncracked circus elephant applique with "Baltimore Zoo" in white. There is some creasing and fraying to this pennant as seen in the photos as well as a missing tassel. Pin holes can also be found in the corners.