Available in Brass, Iron or German Silver. With or with out Fire Kit included. With Burning Glass Lens. Copied from museum original. Very Popular trade item stocked by Hudson Bay Company, Northwest Company and many others during the fur trade era. High quality 6 power magnifier to light pipes and camp fires. Friction fit lid And lens cover. Measures 4 5/16″ X 3″ X 1 3/16″.