CC0 · no rights reserved
Spy Glass
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
Small refracting telescope with an achromatic objective 1¼ inches aperture. There are two brass tubes. The inner one is engraved “Ramsden / London” and calibrated from one to four. A dial adjusts the eyepiece. The telescope is housed in a cylindrical cardboard container covered in shagreen.
National Museum of American History’s own descriptionCredit lineSpy Glass. 1775-1800. Jesse Ramsden. National Museum of American History, Gift of American Pharmaceutical Association and Bristol-Myers Squibb Company. CC0.
