Hi Ted! Gordon Chappell told me the story of Bob Richardson and the dome rings in writing, with great detail, many years ago. I used the story in an abbreviated form in my original book, "The Movie Railroads," in 1981 and mentioned it again in my brand new "Hollywood's Railroads, Volume Three: Narrow Gauge Country." The "donor" loco was actually the #345 after the staged wreck for the movie "Denver & Rio Grande" in July 1951. The #343 was also a "movie star," having appeared in "The Light That Failed" in 1939 before being scrapped in 1941.