E-0030-160-22_1

People-Powered Vehicle (PPV), a pedal car useful for short trips during the oil price crisis. Photograph by Ron Jones, July 1974.

People-powered Vehicle (PPV), a pedal car useful for short trips during the oil price crisis. Photograph by Ron Jones, July 1974. Credit: Courtesy / UTSA Libraries Special Collections / San Antonio Express-News Photograph Collection

People-Powered Vehicle (PPV), a pedal car useful for short trips during the oil price crisis. Photograph by Ron Jones, July 1974.