In all likelihood we see palimpsest here which means that some engravings overlap the other ones. The first scene shows a curved boat with 5 rowers. The other scene shows 4 men engraved in a typical position with their shorten arms put out forward. They are walking in the same direction. Three men images are engraved next to each another and they are partly overlapped by the boat image made later. Image four is of a smaller size and is located above the other images.