on Jul 8, 2016
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Made of brass and painted iron, the user would add several slide clips (not included), and then place a slide underneath the clips
Measures approximately 7 inches long and 4 3/8 inches at it's widest point
In this manner, at the end of the 19th century, the product range included eyeglasses, microscopes and binoculars, as well as projectors, camera lenses and camera diaphragms
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