LGB Mogul C&S Brass Beartrap Spark Arrestor. This is an exquisite piece. I don't remember who makes it. It is solid brass construction. The top hinges open. Painted the same dark gray as LGB Mogul. Fits righ on the stck of LGB Mogul.Muchbetter than the plastic one that came wiht certain models. Brand new condition. I think this is a pretty rare piece.