Earl is correct about the 455 excursion being 1947. This was portion of a huge trip they made from Alamosa-Durango-Silverton-Ridgeway-Durango-Alamosa.
We have film of the trip in our Rio Grande Southern Memories, and the D&RGW portion in "Rio Grande Steam Passenger Trains".
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I think the mixed train stuff to Silverton from the 47 trip is in our 4th Division show, as we considered it freight since that video is mostly freight ops.
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You can see preview clips of these on our website.
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