Vintage, DACOR DIVING LUNG, Dial-A-Breath, 2 stage regulator, serial # 16616. Selling for collectible purposes. Seller has not tested, has not cleaned, nor reconditioned in any way. If you choose to dive with it, as with all diving equipment, it should be inspected by an expert technician before use. Weighs 2lbs. 7ozs. 9 photos are a part of this description.