Stanley London Solid Brass Stand Surveying Compass Start Price USD 85.00 Current Price USD 85.00 Time Left 25 days 12 hours 3 minutes Bid Count 0 Buy It Now Price - Reserve Price - Start Time Sunday, October 05, 2008 End Time Monday, February 02, 2009 Location Atlanta, Georgia See more about 'Stanley London Solid Brass Stand Surveying Compass' Description Stanley London® Solid BrassStand Surveying Compass  Click any of the thumbnail images to view a larger image Front Viewof Compass Left Side Viewof Compass Right Side Viewof Compass Detail ofCompass Rose Top View of Compass Three Adjustable Legs  This Stanley London® compass is a heavy solid brass reproduction of an antique stand surveying compass.  The compass is mounted on a stand with three independently adjustable feet and is free to rotate in azimuth on the stand.  There is an adjustable spirit level on the side of the compass.  A mirror is located on the inside of the lid with a vertical line inscribed for use as both a rear sight, as well as to assist in reading the heading.  The front sight has a magnifying lens built into it, which can also be used to read the compass heading.  When the compass lid is closed, it moves a needle lift mechanism that protects the jewel bearing while the compass is being transported.  The top of the lid contains a natural sine table and is labeled "Stanley London."  This compass measures 3 1/8 inches (7.9 cm) in diameter, stands 3 1/2 inches (8.9 cm) tall with the lid closed, and weighs 1 pound, 10 ounces (740 grams). In practice, the spirit level is calibrated by setting the compass on a relatively level surface and adjusting the spirit level until the bubble reads the same distance from center when the compass is rotated 180-degrees on its stand.  With the spirit level calibrated, the three threaded feet are adjusted so that the spirit level is centered for any azimuth.  When an object is sighted through the sights, the main compass rose determines its magnetic heading, and its heading with respect to true north can be read from the outer azimuth ring. If you have questions about this product, please contact me at toll-free 1-866-368-8287 or email to sales@geosolution.com  Place a Bid!