Glass Graduated Addition funnel open top Cylindrical style glass stopcock 28”

Description

Glass Graduated Addition funnel open top Cylindrical style glass stopcock 28”.
It is vintage estate find funnel approximately 28” long. 50 graduations 1 cm each stopcock working could be open and closed. The tube funnel marked on top “m 20 C D B” please look at the many pictures for details.
8 pictures for details