1 x Triangular prism. 2 x square lens(different size). 1 x Laser Beam generator. 1 x spherical lens. 1 x water channel. Material: Acrylic plastic, not glass! Box Size: 23.2 x 16 x 5cm. If item is defective after 3 months, you can still send it back to us.
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I believe this to be an Original item, in very good condition but showing genuine signs of age. This is a wonderful, interesting and collectable item for any collectors.
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The Vintage Industrial Instruments Model 70D Ohms Decade Box Ordnance Corps is a highly collectible scientific instrument manufactured in the United States. This unique piece of history is a valuable addition to any collection of vintage science equipment or scientific instruments. Its origins with the Ordnance Corps add to its historical significance and appeal to collectors interested in the development and evolution of scientific instruments over time.
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Superb quality Antique 19c Navigational Surveyor's Rule. In amazing condition and lovely graining, with Normal scale of Horizontal Equivalents and Horizontal Equivalents in Yards Scales. A rare piece to have survived in such great condition all items properly packaged in boxes and posted tracked free post
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This is mid-19th century German antique prosthetic eye with mild defects. The glass eye has two cracks as shown in the photos. The cracks are not that noticeable to the naked eye. The full globe prosthetic was used in the 1800's to fill the entire eye socket after the enucleation of an eye.
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The slide rule is a useful tool for engineering and surveying tasks, typically made of durable materials such as plastic. This collectable item is not only practical but also a piece of scientific history, making it a valuable addition to any collection. With its compact size and ease of use, the slide rule is a great tool for both professionals and enthusiasts alike.
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The slide consists of two glass plates, on that the image is applied to and a second to protect the image. The slide normally has a inner paper border and then the slide is then held together with edging paper.
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