zeiss14a.jpg (57333 bytes)

zeiss14b.jpg (49850 bytes)


Zeiss Continental brass microscope circa 1890

This is Zeiss Stand VA that was introduced in 1883. It is signed "C. Zeiss, Jena, 14397" and measures 11" closed. It features a draw-tube coarse focus and knob controlled fine focus on top of the limb. The lens barrel length is variable with a graduated drawtube. The instrument is entirely brass with black japanned base, vulcanite stage, and original laquered brass elsewhere else, except on sliding parts. The lacquer coverage is 100% with only minor spotting. The plano-concave mirror is excellent but show preliminary age clouding on the plane side. A sub-stage Abbe condenser has a swing-out variable iris diaphragm. The diaphragm can be shifted off axis and rotated to allow for oblique and dark-field illumination. Two original Zeiss lenses accompany the microscope. One is marked "D", the other is 1/12" oil immersion n.a.1.20. Both have brass Zeiss canisters. The canister of the "D" lens is mis-matched and marked "A" on top. There are three eyepieces, marked 1, 2, and 3. A mahogany case with brass carry handle houses the microscope and lenses. The case may have been re-varnished, but is in very good condition. This was a popular model in the last decade of the 19th century. It is featured as figure #182, page 97 of Billings.

Item 1049

back home