This set is for "re-marking" Wisconsin Central's SSAM cars with the WCCL reporting marks. These cars were re-marked "on the fly", meaning they painted out the SSAM with whatever color was handy and painted WCCL on with whatever stencil they happened to have at the time. There are some that did actually get vinyl lettering that matched the SSAM style, but they still had the odd colored paint out boxes. This set will "re-mark" more than a half dozen cars.