Don’t know a whole lot about them, how or if they work. One has selsi and made in england on the face.
It is mounted on a small piece of wood. On the back it is inscribed to p. Looks like a a x-mas gift from work crew to captain or boss. The second piece reads tycos- rochester, ny usa- toronto, canada on face.
It has some corrosion/wear to outside edge of housing (see last photo).The item “2-Antique Barometers- Tycos/Selsi- Signed on back 1943″ is in sale since Tuesday, January 28, 2014. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “tomlinson9044″ and is located in Red Hook, New York. This item can only be shipped to United States.