A SURVEYING TOOL W. MATTHEWS, PROBABLY EARLY 20TH CENTURY approximately 5 inches long. The item “ANTIQUE SURVEYING SURVEYORS INCLINOMETER CLINOMETER EQUIPMENT W. N. MATTHEWS CORP” is in sale since Wednesday, September 16, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “preservedpast” [...]