SPLENDID MINIATURE TELESCOPE WITH COMBINABLE EYE LENSES AND SOLAR CAP, English, c. last quarter 18th century, signed “J. Bleuler, London.” Constructed with tubes and fittings of Sheffield silver plated copper and brass, this little telescope opens from 2-3/4″ to 6″ (7 – 15 cm) with three drawtubes. The main tube is finished with black enamel over copper. Giving erect images, the optics are a greenish triplet achromatic objective, two swiveling eyelenses useable singly or in combination, and a slip-on
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