M0004940: Joseph von Fraunhofer demonstrating his spectroscope
- Date:
- 27 October 1936
- Reference:
- WT/D/1/20/1/40/31
Licence: In copyright
Credit: M0004940: Joseph von Fraunhofer demonstrating his spectroscope. Source: Wellcome Collection.
Licence: In copyright
Credit: M0004940: Joseph von Fraunhofer demonstrating his spectroscope. Source: Wellcome Collection.
