This is an exquisite vintage Navajo Bisbee turquoise silver bolo tie. This remarkable bolo consists of a center Bisbee turquoise stone. The stone is wonderfully placed on an oval shaped silver concho bolo that contains sun bursting patterns and sun works. The bolo measures around 2″? X 1″? Resting at the bottom of the 39 black leather tie are amazing long silver cones with accenting silver beads. The center stone measures around 14mmx10mm no marks but tested as Sterling silver. Sturdy 31.9 grams. The Bisbee mine, “the Lavender Pit”, near Bisbee, Arizona, is one of the more famous of the American mines because Bisbee turquoise (also known as “Bisbee Blue” registered name) was one of the first put onto the market. The turquoise mine is part of the Bisbee copper mine (The Copper Queen), the main operation of the site. Bisbee turquoise has developed a reputation as a hard, finely webbed or dendrite, high blue stone, known for its “chocolate brown” matrix. Bisbee turquoise also comes in a beautiful dark green color. Because most of this turquoise has already been mined and what is left is in limbo due to circumstances with the copper mining in the open pit, it is one of the most highly collected stones. Most jewelry being made with this stone today is being made via the orders of the current owners of the mine. The rest, such as ours which is all hand cut and mounted by Durango Silver Co. Is found through old “stashes” or collections that have been obtained.