A Cased Seibert Compound Monocular Microscope, circa 1890. 11-1/2 inches high (29.2 cm) (base, not extended, excluding eyepi...

Description

A Cased Seibert Compound Monocular Microscope, circa 1890
11-1/2 inches high (29.2 cm) (base, not extended, excluding eyepiece)

PRIVATE WEST COAST COLLECTION

The microscope having SEIBERT on back of body tube; serial number 5832 on case and magnification chart. Continental horseshoe foot, "C" shaped pillar support, fine focus knob on bottom of pillar, parallelogram attachment of body tube to pillar. No inclination. Triple nose piece (detent spring is broken), rectangular stage with push-in holder for condenser and 3 stops (no condenser), blued steel stage clips, plano-concave swinging mirror. 3 eye-pieces: "0", "I", "II"; 4 objectives in a separate leatherette covered box, all lacquered brass signed, "SEIBERT": "No. I", "No. II", "No. III" & "No. V". ; small calibration slide; camera lucida; original box of round and square cover slips; adapter to convert Seibert (Hartnack) objective lenses to RMS threads. Stand is lacquered brass, except stage and parallelogram arms with nearly 100% of lacquer present on outer surfaces. Body extension tube shows wear. Fitted chest-type case & key, case marked with matching serial number. Extensive Seibert material and illustration of this model and details of fine focus mechanism in "The Story of the Microscope", Harald Moe, pp 215-220.

Accompanying this lot is an article on the Seibert family history and microscope production.

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