Description

and documentation

Used as the red-rail partner to the 300mm black 2mm-plug lead

and aluminum at a shared 0

used in density investigation

Optically Worked Double Concave Glass Lens, 75mm Diameter, 250mm Focal Length Graduations_50mL and documentationDouble concave glass lens at 75mm diameter and 250mm focal length, ground polished edges, the diverging surface yielding virtual reduced upright images suited to introductory optics.

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Optically Worked Double Concave Glass Lens, 75mm Diameter, 250mm Focal Length Graduations_50mL and documentation

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