細節
CASSELLA, London
A black-painted brass-bodied air-flow meter, with eight-bladed fan and silvered-dial with three subsidiary dials, in leather case with instructions -- 3½in.(9cm.) high
A black-painted brass-bodied air-flow meter, with eight-bladed fan and silvered-dial with three subsidiary dials, in leather case with instructions -- 3½in.(9cm.) high