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:
Correspondence Buchinger Jean and Engelmann George Aug verso BHL. Correspondence Buchinger Jean and Engelmann George Aug verso Illustration Blank Buchinger to Engelmann biodiversitylibrary org Buchinger Jean Daniel Permission to digitize granted by rights holder Biodiversity Heritage Library Check categories October