Following in our recent slew of brochure’s(here and here) and maps from the 80’s and early 90’s, today we have a very simple one from the Walt Disney World Dolphin resort, which opened on June 1, 1990 (along with its sister The Swan), and is operated by Starwood Hotels and Resorts, the parent company of, among other brands, Sheraton, of which this is a branded property.  There is no mention of Animal Kingdom, so coupled with its overall aesthetic I think we can safely assume this is from sometime in the early 1990’s.