Model of an Optical Telegraph, anonymous, c. 1806 Canvas Print

Model of an Optical Telegraph, anonymous, c. 1806 Canvas Print

Model of an optical telegraph on octagonal foot. The telegraph consists of a mast with three rotating arms; these consist of a trellis to keep their weight low, and are on the one hand black, on the other hand, which serves only as a counterbalance, white and openwork, so that this end is practically invisible from a distance. Each arm has six positions. A half-octagonal cabin with a pointed roof has been built on the base, which shows the inside and the operation of the signal mechanism.

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