M0018955EA: Illustration of Benjamin Ward Richardson's modification of Dudgeon's sphygmograph, 1885
- Date:
- December 1961-January 1962
- Reference:
- WT/D/1/20/1/168/65
Licence: Public Domain Mark
Credit: M0018955EA: Illustration of Benjamin Ward Richardson's modification of Dudgeon's sphygmograph, 1885. Source: Wellcome Collection.
