image is a derivative work of the following images: File:John_Marshall_(surgeon_1818-1891)_Signature.png licensed with PD-1923, PD-old-80 2010-06-18T11:20:51Z...
DescriptionJohn Marshall (surgeon 1818-1891) Signature.png English: Signature of surgeon and scientist John Marshall (1818-1891) from the Certificate of...
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_Signature.png){kind=link}