Chemical balance
1930-1955
Distillation head with B24 ground glass lower joint
Mercury immersion thermometer
1950-1975
Pressure equalising dropping funnel
Nitrometer Tube
1900-1950
Intermediate (Perkin type) receiver
Model of eye with spectacle lenses
1900-1905
Three neck round bottomed flask
1940-1965
Ripple tank by Townson & Mercer Ltd.
1918-1949
Pressure equalising dropping funnel
1945-1962
Round bottom Pyrex boiling flask
Round bottom flask with side arm and ground glass neck
1950-1965
Ground glass multiple adapter
1945-1965
Round bottomed flask with side-arm
Multiple adapter with two necks parallel
1945-1965
Cathetometer telescope by Townson & Mercer Ltd.
1900-1949
Aeolipile (Steam Turbine) by Townson & Mercer, 1886
1886
Fortin barometer by Townson & Mercer Ltd.
1900-1980