"Crosti Barometer And Thermometer "
Exceptional pair of barometer and thermometer by Crosti, optical engineer in Bordeaux. Signed on the top of the instrument. Sold in their original condition and their old patinas. In the juice! Slight lack of brass-plated wood on the width of the bottom of an element) visually very beautiful and rare pieces! Apparently in working order, tubes and tanks not broken. Notice to collectors and lovers of scientific objects! 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato