500-series Optima Opus
The rear doors of prototype bus #500 while at Skokie Shops on June 17, 2006. Like the 1000-series New Flyers, the rea...
Photo by Robert MadisonBus #503 at Michigan and Adams working route #173 University of Chicago/Lakeview Express on November 9, 2006.
Photo by Kevin ZolkiewiczBus #530 at Halsted and Armitage working route #173 University of Chicago-Lakeview Express on April 25, 2008.
Photo by Tony Coppoletta

