Public domain
Model of an Optical Telegraph
From the collection of Rijksmuseum, Amsterdam. Free to download, adapt and use — no permission needed.
About this work
Model of an optical telegraph with code. The telegraph consists of a wooden board with seven different sawn-out shapes in a row, which can be covered with brass flap doors. The code, pasted on paper with ink on a separate plank, indicates the signal combinations for the letters of the alphabet and three punctuation marks: the comma, the colon, and the period.
Rijksmuseum, Amsterdam’s own descriptionCredit lineModel of an Optical Telegraph. 1795 - 1816. Rijksmuseum, Amsterdam. Public domain.
Similar works
Model of an Optical Telegraph
Box Containing Twenty-Three Samples of Wood from Surinam
Box Containing Twelve Samples of Wood from North America
Model of Foundations with Cross-Piling
Liège, decorated with flat-cut guilloches
Chimney frieze with three coats of arms, presumably those of Egbert van Groenenberch and Mechtelt van Rodenburch