Specification of Francis Fearon : softening or deadening sound.
- Fearon, Francis.
- Date:
- 1865
Licence: Public Domain Mark
Credit: Specification of Francis Fearon : softening or deadening sound. Source: Wellcome Collection.
6/8 (page 4)
Licence: Public Domain Mark
Credit: Specification of Francis Fearon : softening or deadening sound. Source: Wellcome Collection.