An 18th-Century Nuremberg-pattern magnifier,

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An 18th-Century Nuremberg-pattern magnifier,
unsigned, with copper concave section wire frame (small chips to lens edge), in paper-covered case (worn, lacking lid); and an 18th-Century Nuremberg-pattern magnifier, signed FRIEDERICH SCHRODER continuously on the copper concave section wire frame (lens cracked with loss, frame repaired), with brass lens case -- 3.3/8in. (8.6cm.) long
See Illustration (2)
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