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locked Question re: two-aspect block signal at Kent Jct.
On page 84 of “Appalachian Coal Hauler: Interstate Railroad's Mine Runs and Coal Trains,” there’s a photo of Southern 2182 on a mine run at Kent Jct. There’s a two-aspect colorlight signal to the right of the locomotive. I’m wondering if this is indeed a manually operated stop-proceed block signal protecting the branchline that began at Kent Junction? Instead of a two-aspect, manually operated dwarf semaphore signal that the train crew could lock to "stop," as I recently learned the Southern used on the St. Charles Branch, it’s a two-aspect colorlight signal atop a case serving the same purpose.