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Telescope built in the Newtonian configuration with one axis of mount polar-aligned for tracking the sky
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Telescope built in the Newtonian configuration with one axis of mount polar-aligned for tracking the sky

Harris & Ewing · 1936-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
glass negativesunited states
Credit lineTelescope built in the Newtonian configuration with one axis of mount polar-aligned for tracking the sky. 1936-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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