Hunt Shoofly, from a collection of Richard Jackson Albums at the California State Railroad Museum. Date is most likely between the late 1930's to 1940's.
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californiarevealed.org]
Also, while we're on the topic, this is the only photograph I know of at the original Needleton siding. This W. J. Carpenter photograph is at the Denver Library Digital Collections, I have retouched it slightly to better show Pigeon Peak in the backround as it helps to give an idea of its location. The rails of the siding are barely visible at the far right. There was a print of this photograph for sale on an auction website that showed the uncropped version of this picture that appeared to show a small platform to the west of the tracks but no buildings. If anyone has seen a possible photograph at the old (preflood) Needleton site it would be of great interest.
Daniel Frauenhoff