`Guinea and Feather' apparatus
- Made:
- 1900-1949
`Guinea and Feather' apparatus, consisting of a glass tube with a brass stopcock at one end and a large threaded brass plug at the other and containing a feather and a piece of metal
`Guinea and Feather' apparatus, consisting of a glass tube with a brass stopcock at one end and a large threaded brass plug at the other and containing a feather and a piece of metal