misc060 Published July 1, 2015 at 2655 × 1455 in More Chicago Streetcars ← Previous Next → CSL 4051, with experimental door arrangement, leaves the Milwaukee-Imlay loop circa 1940-41. (Stephen D. Maguire Photo) CSL 4051, with experimental door arrangement, leaves the Milwaukee-Imlay loop circa 1940-41. (Stephen D. Maguire Photo)