Physionotrace

This instrument based on the pantograph helps us to outline a person’s silhouette projected onto a screen and to copy it on a small piece of paper. It was invented in 1783 by the Frenchman Gilles-Louis Chrétien. These portraits were very popular due to their low cost.

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Antic physionotrace

 

Print from Caspar Lavater’s “Essays on Physiognomy”, Paris, 1807.