It has a very nice case which I believe may be mahogany wood, it is 5 in diameter and it remains in good condition. The item “Barometer ANTIQUE VINTAGE Mahogany Wood and Brass SWIFT” is in sale since Thursday, November 19, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “parot-head” and is located in Beach Park, Illinois 60087. This item can be shipped worldwide.