Ernst Mach. Photogravure by Synnberg Photo-gravure Co., 1898.
- Date:
- 1898
- Reference:
- 11974i
Licence: Public Domain Mark
Credit: Ernst Mach. Photogravure by Synnberg Photo-gravure Co., 1898. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Ernst Mach. Photogravure by Synnberg Photo-gravure Co., 1898. Wellcome Collection. Source: Wellcome Collection.