Items

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  Pocket Microscope

  The microscope is made from brass. The instrument can be closed and extended to reveal two square cutouts on either side of the microscope. In the middle section, a specimen can be placed through the cutout for observation. The presence of an ocular lens, magnifying lens (in the center) and a lens at the bottom of the instrument allows it to also function as a telescope.
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  Simple Pocket Microscope

  The simple pocket microscope is made from brass. The lens on the underside of the microscope is a Stanhope lens. The ocular lens is a lower-power convex simple lens. Each lens can be focused by drawing the body tube in and out of the drawtube. The mirror is located between the lenses and revolves to reflect light into either lens. To view, specimens are held on a pin, between tweezers, or between the microscopist's fingers as the small size cannot accommodate slides. The lower simple lens can be removed so the instrument can be used as a magnifier.
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  Pocket Microscope

  The simple pocket microscope is made from brass and is similar to a "squat" model. The ocular lens has a cover to protect the lens which slides out a slot compartment. The lower section of the instrument has two pillars and a square cut out in the bottom in which a specimen can be inserted for observation. The microscope comes with a fitted cylinder case.
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  Handheld Brass Microscope

  The simple microscope is made from brass. The microscope magnifies items 50 times linearly. The design is also known as a "universal" microscope and was popular from the start of the twentieth century. The simple design includes a singular ocular lens and the slides are held in place via a slot on the middle section of the circular body which is spring-loaded. These types of microscopes were manufactured in France or Germany and due to their low-cost, durability, and simplicity to use meant it was a popular instrument for hobbyists. The original box is made of cardboard and has two compartments to hold the microscope and the slides. The case also has instructions to use the instrument inscribed inside the lid.
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  Pocket Magnifier

  The pocket focusing magnifier is made of lacquered brass and has an unusual Archimedean screw thread. Focusing is operated by twisting the body-tube along the thread in a circular motion to adjust the distance between the ocular and objective lens. These instruments were commonly composed of two plano-convex lenses of identical focal length, mounted with their plane sides outward at a distance apart equal to two-thirds of the focal length. This instrument would have been used in photography. It could be used to focus on an image by aiming the lens or placing it against an image, therefore not allowing light to enter.
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  Pocket Handheld Microscope

  The pocket simple microscope is made of lacquered brass. The microscope magnifies items 50 times linearly. The design is also known as a "universal" microscope and was popular from the start of the twentieth century. The simple design includes a singular ocular and the slides are held in place via a slot on the lower section of the circular body which is spring-loaded. These types of microscopes were manufactured in France or Germany and due to their low-cost, durability, and simplicity to use meant it was a popular instrument for hobbyists. The original box is made of cardboard and has two compartments to hold the microscope and the slides. The case also has instructions to use the instrument inscribed inside the lid.