Condenser stand, cast iron black finish
1889
Gavaloski's fat extraction apparatus
Condenser stand, cast iron black finish
1889
Condenser stand, cast iron black finish
1889
Condenser stand, cast iron black finish
1889
Four condenser clamps and stands
1889
Retort stand from portable chemistry set
Retort stand and clamp from the Soxhlet apparatus
1900-1923