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細節
A 20th century brass 6 in. telescope
the 90 in. long body tube with sighting scope, counter balance, geared astronomical mounting adjusting altitude and azimuth, turn screw focus knob, prismatic eyepiece, six additional lenses in a floor box, a mahogany tripod with metal feet and collar.
90 in. (228.6 cm.) long
the 90 in. long body tube with sighting scope, counter balance, geared astronomical mounting adjusting altitude and azimuth, turn screw focus knob, prismatic eyepiece, six additional lenses in a floor box, a mahogany tripod with metal feet and collar.
90 in. (228.6 cm.) long