SP 329000-329007
These cars were converted by SP from existing 50', 70 ton gons for coil steel service by the addition of 3 piece removable, stackable covers and internal bulkheads for securement of the coil steel loads. It is not completely certain eactly which original class these cars were taken from, but they were from either G-70-7, -8, -11 or -12 class gons.