This is the cylinder interior of the 1902 horizontal hydraulic elevator built by Warner Elevator Manufacturing Co. for the Golden Rule Co. Building in Belington, West Virginia (p. 40). The meaning of the chalk markings on the piston end may never be known; however, they serve as a reminder of the presence of a long forgotten workman who doubtless sought to maintain the elevator with care and precision. The meaning of the apparently random order of the numbers’ sequence remains a mystery.
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