"The Boy Mechanic" had an article [1] on building a "Wondergraph". Googling the term will pull up a lot of examples [2] of this turn-of-the-19th-Century device

"The Boy Mechanic" had an article [1] on building a "Wondergraph". Googling the term will pull up a lot of examples [2] of this turn-of-the-19th-Century device. [1] https://archive.org/details/theboymechanicvo12655gut/page/n535/mode/2up https://archive.org/details/theboymechanicvo12655gut/page/n5... [2] https://www.aesculier.fr/fichiersMaple/wondergraph/wondergraph.html https://www.aesculier.fr/fichiersMaple/wondergraph/wondergra...