The French sign language alphabet with ornate border, above it, the Abbé C.M. de l'Epée and the Abbé Sicard. Lithograph.

Reference:
18015i

Licence: Public Domain Mark

Credit: The French sign language alphabet with ornate border, above it, the Abbé C.M. de l'Epée and the Abbé Sicard. Lithograph. Wellcome Collection. Source: Wellcome Collection.

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