Mid 1950s. "Boyle Heights is a historic suburb on the east side of downtown Los Angeles. Most Southern California watercolorists preferred to paint California’s farmsteads and so Kosa’s rare scenes of downtown Los Angeles, painted in the early post-World War II period, distinguish him from his peers. Visible in this work are key landmarks such as the pyramid-topped skyscraper of city hall and the gas company tanks; other views he made of LA show..." http://www.californiaart.com/artist-kosa.html