A few weeks ago, I was contacted about my drawing of 768 at Sheridan Elms. As it turns out, 768 was not the stripless car, but it was 763, the next to last Silverliner. The Story goes that 763 was trialled without the stripes as a cost-cutting measure when it was first outshopped on March 20th, 1958. The general opinion was that the car looked unfinished, so it went back into the paintshop in early May, and on May 13th, it rolled out of Highwood a full Silverliner.
Sorry for any confusion.
Zach