This is an Edwardian mahogany cased barograph in that typical style manufactured during the first quarter of the 20th century. It has bevelled glass all round and there is a chart drawer to the base together with a lovely original cut-glass ink bottle. A small blank brass presentation is available if required.  A quantity of charts and a fresh bottle of recording ink will be included. 
There is also a reprinted copy of a period instruction pamphlet showing setting methods and how to interpret typical chart recordings.
357mm W x 219mm D x 215mm H.