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Rogers visual synchronizing system

Rogers visual synchronizing system

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Description (Brief)
Part of Rogers Visual Synchronizing System. #2 of 8 pieces of apparatus, patented 1887-1890. A: brass synchronizing wheel on cast-iron base, mounted on oak table, with brass insert having 8 pairs of magnets. about 30" x 24". [Same as 309852A]
Object Name
signaling device
system, visual synchronizing, part of
Rogers Research Laboratory
ID Number
accession number
catalog number
Credit Line
from James C. Rogers
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Work and Industry: Electricity
Data Source
National Museum of American History
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