Antique brass kerosene or oil banquet lamp burner - no. 3 size, duplex, flip top with set screw for chimney. Both thumbwheels working as designed. Frosted & clear antique glass chimney included. Approximate measure me nts (may vary slightly).Burner with 1 3/4 threading for no. Chimney with 3 3/16" base, 7 1/2" high, 4 3/4 diameter top rim. Please look closely at the pictures; they are part of the description. We are describing what we see but you are the expert. If described as VINTAGE or ANTIQUE, it should never be expected to look like new. Color or image quality displayed on your device may not be exactly as the item appears in person, but we do not alter our pictures. We will do our best to respond promptly.