REFLECTING OBJECTIVE AND CONDENSER, German, c. mid-20th century, the objective signed “Carl Zeiss, Jena, Spiegelobjecktiv, 40/0.65, 160/0.17, #014782,” the condenser “Carl Zeiss, Jena, Spiegelkondensor, 0.6, #209551.” Each is approximately 2″ (5 cm) tall, constructed of substantial plated metals, designed somewhat like a miniature Cassegrain telescope with one large concave mirror with central hole, and one small convex mirror with three-armed spider mount. In fact it is apparently the Schwarzschild system, developed in 1905. Condition seems excellent. One comes with
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