Thank You Mr. Blouch for this information. This raises additional questions that I'll have to research. I'm in the long process of sorting through a very large quantity of color slides that my father took of steam. You never know what train the next one will be featuring, as no two slides are in order. They jump around from when Kodak didn't date stamp their slides (just a few) through 1965. These two trips have provided the largest percentage of slides. What a trip(s) that must have been.