Signedunsigned
Inscribedstamped on top: 22-27;
stamped on top: G;
inscribed on label: 20.5.4
FunctionAcoustic apparatus; an organ pipe, designed to resonate at a specific pitch when pressurized air passes through it; this pipe demonstrates the importance of the distance between the jet of air (from wind chest or blower) and the edge which it strikes.
ProvenanceType of label with numbers present in objects coming from the Physics Department, Harvard University.