[Parts of] Set of spectacles, with concave, convex, cylindrical, prismatic, and colored glasses. By Miller, Boston The spectacles on the left are prismatic, the spectacles on the right are colored. See another <link ref="tec2997">set of spectacles</link> and <link ref="tec2959">a single pair of spectacles</link> on another photograph from this set. [Parts of] Set of spectacles, with concave, convex, cylindrical, prismatic, and colored glasses. By Miller, Boston

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