Reading Company was among the most prolific users of the Hall Disc signal, one of the earliest forms of an electrically actuated signal.

Curiously, Reading continued to install new Hall Discs years after perfection of the electric three-position semaphore.

A few of Reading’s Halls survived into the diesel era.

Reading & Northern, which operates significant sections of the old Reading Company, installed this recreated Hall Disc near its Port Clinton, Pennsylvania offices in homage to Reading’s classic signaling.

In December 2014, I made this sequence of photos using Pat Yough’s FujiFilm XT1, on a trip to photograph R&N’s 4-6-2 Pacific number 425 that was running Christmas trips to Schuylkill Haven and Minersville.

Now that I’ve endeavored to recreate the Reading Company in HO Scale, I’ve stumbled upon a quandary: How to make operating scale models of the antique Hall Disc signal? 

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