Dick Allen's Knucklehead Loco-Motion still exist or at least parts of it. These are the original tanks that date back to Nez's purple knucklehead and later were on the Vincent experiment, the Rat Bike, and the Ratty build up of White Bear. I've never seen this version of paint with script lettering with a train behind it. The former and more familiar paint was sort of wacky lettering with a hyphen, no train with wavy lines surrounding the indents. They are being repainted by Dick Doughty an old time South Bay painter and the current owner wants to retain the side panel's since this is how Dick last ran it.
Not only is the left side different from the right, it's indent is smaller.
Note the unusual frisco mount at the front.
This is the best photo that I could dig up (previously posted), of the most famous design. It was basically a black version of Nez's design (below on the Vincent). Sadly there aren't any really good photos of Loco-Motion.