M0018977: Illustration of a clinical polygraph devised by Sir James Mackenzie using a Dudgeon sphygmograph and tambour, 1908
- Date:
- February 1962
- Reference:
- WT/D/1/20/1/168/85
Licence: In copyright
Credit: M0018977: Illustration of a clinical polygraph devised by Sir James Mackenzie using a Dudgeon sphygmograph and tambour, 1908. Source: Wellcome Collection.

