This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Signature de AndrMichel Guerry. Signature of AndreMichel Guerry from letter to Charles Babbage dated August fr Photo de la signature d'AndrMichel Guerry Original publication The History of Science and Technology Series three Papers of Charles Babbage Part Correspondence and Scientific Papers from the British Library London br