Shorts & mason, probably early 20th century. Approximately 4 inches high.The item “ANTIQUE SURVEYING ANEROID COMPENSATED BAROMETER SHORT & MASON TYCOS LONDON” is in sale since Friday, March 20, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “preservedpast” and is located in Kansas City, Missouri. This item can be shipped worldwide.