This cap lamp was popular in various European mines in the 1920's. One filling of the water and carbide would provide light for 4 hours. This replica is made of hand polished, cast brass, with an antique finish. Complete with soapstone burner, 2-1/2 inch diameter brass reflector, and reservoir. Size: 5-7/8 inches by 2-3/4 inch diameter. Eight inch long hanger. Made in Germany. Shipping weight 2 lbs.