This barometer was made by J. Long of Tiverton in the early 1900's.  Possibly 1810-1830.  It is a Mahogany Mercury Barometer Star Centered Register Calibrated in Barometric inches with convex mirror, arched alcohol Fahrenheit scale thermometer with Hygrometer to the Swan neck pediment above with a squared off base with spirit level inscribed J.Long Tiverton.  I am selling this at a greatly reduced price because you will have to get it calibrated when you receive it.  The posting will upset the mercury and if you want it to work accurately it must be corrected by someone who deals with barometers. They are not hard to find as usually clock repairers have access to this ability.  If you are not concerned about its usefulness, it is still a beautiful piece to hang for its beauty and age.  INTERNATIONAL POSTAGE MAY BE LESS THAN QUOTED DEPENDING ON LOCATION. Paypal only. Thank you.