With porcelain plate. Vacuum-tight. The stopcock has an outer diameter of approx. 9 mm.

Desiccators glass
Desiccators vacuum
Vacuum desiccators
Desiccators glass
Desiccators vacuum
Vacuum desiccators
Desiccators glass
Desiccators vacuum
Vacuum desiccators
Desiccators glass
Desiccators vacuum
Vacuum desiccators
Desiccators glass
Desiccators vacuum
Vacuum desiccators