"Controlled" Manual Block

NW Mailing List nw-mailing-list at nwhs.org
Tue Oct 29 23:36:48 EDT 2013

Has anyone, in his ruminations and peregrinations through the old N&W Time Table Special instructions of the 19-teens, 1920s and 1930s, ever run across the term "Controlled Manual Block"? (The word "Controlled" is the key here.)

-- abram burnett

Sent to you from my Telegraph Key...

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