Contact was made with Mr. Charlie Klegg who worked for the Swan Portland Cement Co. He said that this vessel was known as No. 1 dredge. It was built of timber and the drag line was powered by a coal burning steam engine. The method of holding these dredges in position was by using two 11/2 ton anchors off the bow with a 600′ line, two 11/2 ton anchors off either side and the fifth anchor weighing 2 ton, straight off the stern. After working an area, the crew would loosen off the side and stern anchors, while tightening the ones on the bow, thus, moving forward. These anchors came off the Lygnern when she sank off Fremantle Harbour in April 1936.