This is part of collection of software and other materials assembled over the years by Smithsonian curator Jon Eklund. A white sticker on one side of the cassette reads: Window on Wall Street (/) SPECIAL REPORT (/) Project (/) Management (/) Software (/) 7/8/91 - - 26:00. This lable is visible through a clear plastic window in the black box that holds the cassette. Another mark, this one on the side of the cassette, reads: T-30.