This is an Edwardian barograph set in an attractive mahogany case with a glazed lift-off lid and a chart drawer on a splayed base below.
Circa 1920. Supplied with a selection of weekly charts, a fresh bottle of recording ink and a re-printed copy of an instruction pamphlet by Negretti & Zambra illustrating the interpretation of various chart recordings. 
383mm wide x 240mm deep x 221mm high