Metropolitan Coach Lines (ex-Pacific Electric) blimps nos. 407 and 307 are captured idling in San Pedro in this image dated June 3, 1956.
L. Swanson Photo, Andy Goddard Collection
MCL 407 and 307 in San Pedro2011-09-042011-11-13https://www.pacificelectric.org/wp-content/uploads/2018/05/peryhs-logo-350.pngPacific Electric Railway Historical Societyhttps://www.pacificelectric.org/wp-content/uploads/2018/05/peryhs-logo-350.png200px200px