20004-0000 Musée des arts et métiers-CNAM (Paris France)
Suggestions & Corrections
Type:
instrument
Dimension:
H.: 24,5; Diam.: 7,5
Component's data
Thematic group:
Instruments
Type:
vessel
Abstract:
Cylindrical glass vessel with brass ends, one of which carries a brass knob passing through the end by means of a glass tube insulated with red wax. Other brass end has central threaded opening. A brass strip connects the two ends and is screwed to them: it is marked with a scale with nine divisions, each subdivided into fifths