This vintage Swift & Anderson Army Locator's Level Engineer's Sighting Level (e) is a must-have for collectors and enthusiasts of surveying equipment. With its classic design and sturdy construction, this level is perfect for anyone interested in engineering and science & medicine. Featuring advanced technology and precision instruments, this level is an excellent addition to any collection of surveying equipment. The Swift & Anderson Army Locator's Level Engineer's Sighting Level (e) is sure to impress and inspire anyone who sees it. You can see though it OK, but there is something rattling around inside of it? As is.