Mercurial steam pressure gauge by H. Webster
- Made:
- Unattributed place
Mercurial steam pressure gauge by H. Webster, Clerkenwell, used with 1928-1007 (i.e. Compound Condensing Beam Engine c. 1860)
Mercurial steam pressure gauge by H. Webster, Clerkenwell, used with 1928-1007 (i.e. Compound Condensing Beam Engine c. 1860)