"Universal" retort stand
Condenser stand, cast iron black finish
1889
Condenser stand, cast iron black finish
1889
Condenser stand, cast iron black finish
1889
Retort stand and tube
Condenser stand, cast iron black finish
1889
Four condenser clamps and stands
1889
Schwarz's fat extraction apparatus
Retort stand with rotating circular holder used by Grignard
Tollens' fat extraction apparatus
Retort stand from portable chemistry set
Retort stand and clamp from the Soxhlet apparatus
1900-1923