A barograph is a recording barometer using aneroid cells (called vidies cans). Through a gear, they drive a recording arm which write on a seven days drum.
This instrument, essential to a boat, was nicknamed "the wizard" by the crews of Cape Horn vessels.

James Hicks
( Worked in London during 1878 to 1911)
Barograph by BORDE (paris)
Registration is on a disk and not on a drum as usual.
Richard Frêres (Paris)