A late 19th/early 20th century brass lacquered and oak cased barograph by Negretti & Zambra, London With seven tiers, bevelled glass plates, the case fitted with chart drawer, 36cm wide, 21cm deep, 23cm high (14in wide, 8in deep, 9in high) For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing