Fine & Rare Art Deco Style Barograph / Clock / Thermograph by Negretti & Zambra

A fine & rare, possibly unique barograph/clock/thermograph in oak made by Negretti & Zambra, in Art Deco style. Consisting of a miniature barograph & thermograph with the centrepiece of an 8 day clock all signed by Negretti & Zambra. This could have been a special commission & may have been manufactured for a client in Spain as there are some charts in Spanish. The barograph & thermograph movements both have hinged lids with bevelled glass & neat chart drawers below. The clock has an eight day movement. An exceptional working instrument.