This blog features historical information on the railroad lines of the Big Bend/Columbia Plateau region of Washington state.
The following comments are from Mike Denuty:"Looking at the picture of this item on your site, I think it is a bulletin or message board for numbered bulletins issued by the railroad division. Some bulletins are for permanent changes made between timetable issues, such as "Siding Carders out of serevice, track removed." Some bulletins are long term but officially temporary - "Side track Martindale blocked with cars." Some kinds of bulletins are temporary, such as job openings. Some bulletins cancel previous orders. All bulletins are canceled when a new operating/employees timetable is issued, with new bulletins issued that day."
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