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Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Siphon recorder
Science Museum Group Collection
© The Board of Trustees of the Science Museum