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MAKER: JOSEPH ZENTMAYER

MODEL: 'GRAND AMERICAN'

c. 1865

SIGNED:J.Zentmayer, Maker, Philad' a  

SERIAL NUMBER: 291


Zentmayer Grand American Microscope

The tailpiece attaches to a round fitting which is part of the Jackson-Lister Limb. The round fitting allows the tail to swing right or left.

The gimbal of the mirror housing attaches to the tailpiece with a screw that penetrates a slot in the tailpiece in which the gimbaled mirror can ride up or down, this adjustment facilitated by knurled knobs on either side.