Picture Sunday: 1939 Sironval Sportplex 4-Wheel Bicycle Mr. Homegrown December 1, 2013 Bikes, Picture Sundays, Transportation Share this post The new Prius? More info here. Email this post Email This Post Related Posts Picture Sundays: A High School Bike Rack in Los Angeles Circa 1937 Picture Sunday: Two of My Favorite Activities . . . Picture Sundays: Early Folding Bike? Video Sundays: How the Dutch Got Their Cycle Paths On Living in Los Angeles Without a Car: A Debate What Happens When You Remove 10,000 Parking Spaces