Fortune's Barometer

For atmospheric pressure, wall type filled with mercury sup quality. 

Fortin Barometer made of brass Enamelled black , scale 675 mm Hg - 820 mm Hg with a 

vernier reading 0.05 mm connected with thermometer range - 100C to 500C , placed on the 

hard wood . Can be used from 3000 m above sea level 10,000 feet.