Benjamin Pike Senior
emigrated to the United States in 1804. He
established an optician's business in New York
supplying scientific instruments. His three sons,
Benjamin Jr., Daniel, and Gardiner carried on in the
business with the father and later on their own,
sometimes as partners and, at other times, as
competitors (see this and this). This particular microscope is a
copy of T. H. McAllister's Professional Model
Microscope. It was made under the auspices of Daniel Pike.
This Pike microscope has the
coarse focus mechanism utilizing
a fusee chain instead of the much more common
rack and pinon method used by most other manufactures. The
fine adjustment utilizes a long-lever mechanism, which moves the tube
with the limb remaining stationary.