Citation
"Thomas Ripley & Co. (W. Cole) , 2021.642,” Harvard Art Museums collections online, Dec 26, 2024, https://hvrd.art/o/374347.
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An engraving of an advertisement for a mathematical instrument company, with a decorative frame featuring examples of instruments surrounding the text. At the top of the frame, there is a telescope, microscope, protractors, and scales surrounding the image of a globe, encased in a separate frame. At the bottom left and right, two nude male children hold various equipment. At the bottom center, there is a compass.