Several years ago, I was building a contest scale model. I had a set of the original drawings (from the builder. These drawings exactly matched a plastic model from Williams Brothers. Yippee. 2 sources matched. I then got real smart and ordered a set of photographs from a well known source of documentation on the west coast. Spent a ton with him for these. What he sent were photos (snapshot quality) of a reproduction of the original that used volkswagen wheels and god knows what for an engine. looked like a Ford Falcon radiatior hung on for cooling, and the builder had not even followed the planform for the copy. It just looked like the original (kinda-sorta) So much for trusting that source of documentation again. I finally found a set of 3 views in an obsolete encyclopedia. Bingo. I guess that my point is that Gold is where you find it. Of course I'm not the foremost authority on this.