alb4497414
Model of an Optical Telegraph, Model of an optical (light) telegraph on a wooden base, in very poor condition. A wooden projector board is hung on top of a mast with seventeen sawn-out geometric figures in two rows. The same figures are drawn below on a paperboard-operated control board. The cut-out figures above are covered with lead valves, which can be lifted with strings through the corresponding figures below, so that the figure lets light through. Thirty-six combinations of figures are indicated on the paper below. Four service signals have been explained in Dutch. A label with the number 3 is attached to the base., anonymous, Netherlands, c. 1795 - c. 1800, wood (plant material), iron (metal), rope, paper, model: h 33.5 cm × w 28.8 cm × d 12.1 cm packaging capsule: h 40.5 cm × w 32.5 cm × d 15.5 cm.
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Model of an Optical Telegraph, Model of an optical (light) telegraph on a wooden base, in very poor condition. A wooden projector board is hung on top of a mast with seventeen sawn-out geometric figures in two rows. The same figures are drawn below on a paperboard-operated control board. The cut-out figures above are covered with lead valves, which can be lifted with strings through the corresponding figures below, so that the figure lets light through. Thirty-six combinations of figures are indicated on the paper below. Four service signals have been explained in Dutch. A label with the number 3 is attached to the base., anonymous, Netherlands, c. 1795 - c. 1800, wood (plant material), iron (metal), rope, paper, model: h 33.5 cm × w 28.8 cm × d 12.1 cm packaging capsule: h 40.5 cm × w 32.5 cm × d 15.5 cm
Model of an Optical Telegraph, Model of an optical (light) telegraph on a wooden base, in very poor condition. A wooden projector board is hung on top of a mast with seventeen sawn-out geometric figures in two rows. The same figures are drawn below on a paperboard-operated control board. The cut-out figures above are covered with lead valves, which can be lifted with strings through the corresponding figures below, so that the figure lets light through. Thirty-six combinations of figures are indicated on the paper below. Four service signals have been explained in Dutch. A label with the number 3 is attached to the base., anonymous, Netherlands, c. 1795 - c. 1800, wood (plant material), iron (metal), rope, paper, model: h 33.5 cm × w 28.8 cm × d 12.1 cm packaging capsule: h 40.5 cm × w 32.5 cm × d 15.5 cm
Crédito: Album / quintlox
Autorizaciones: ? Cesión de modelo: No - ? Cesión de propiedad: No
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¿Preguntas relacionadas con los derechos?
Tamaño imagen: 4794 × 5314 px | 72.9 MB
Tamaño impresión: 40.6 × 45.0 cm | 1887.4 × 2092.1 in (300 dpi)
