Clyde's in-progress B-70-19 class 86' box car. Sides are mostly scratchbuilt, heavily modified roof (based on a Ron Hawkins photo taken at the Pepper Ave. bridge in West Colton), specially cast door rollers, plenty of other modifications, too. Information and prototype photos of these cars is found here http://www.railgoat.railfan.net/spcars/byclass/box/b070-19.htm