A good quality polished mahogany barograph, likely made by Casella of London and unsigned for the retail market, circa 1980. The instrument has a bevelled glass lift-off lid, brass movement, a sturdy weekly clock and a two-compartment chart drawer to the base.
 
The instrument would be ideal for a presentation gift: see optional plaque.
 
A quantity of weekly charts together with a fresh bottle of recording ink are included and also a reprinted period pamphlet by Negretti & Zambra Ltd describing operating instructions and how to interpret typical chart recordings.
362mm W x 215mm D x 225mm H.