For the purposes of engineering calculations survey chains deviated from the early standard of Gunter’s chains having lengths of 33’ and 66’ favor a configuration having 50 and 100 foot lengths made up of links and associated rings, each with a length of 12 inches. This chain is of the latter type, having 50 links, for a total of 50 feet. The end are heavy brass handles marked with the K & E trademark and the model number . The four tags are brass. The chain is dark with lubricant and is made of heavy steel with no rust or pitting. Survey chains of any stripe are getting harder and harder to find. This one dates to the early 1900s. Fine.