A Fishskin Covered Telescope-18th C.

These early 18th century telescopes were constructed of cardboard andbrass and finished with fishskin for extraordinary durability. Measuring over six feet long, it was fitted with a five element optical system including a single lens objective. The lenses were difficult to grind on a large scale, but the long focal lengths gave powerful images. Pretty to look at, if you don’t get distracted.

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