WAC image showing most of the Ash region on the comet’s body (right lobe). b): NAC image showing the smooth nature of the dust covering the Ash region. Box shows the location of the 40 m-wide candidate impact crater, which is highlighted in the inbox. Arrows show locations where units resembling Seth’s brittle material are exposed from beneath the dusty coating (see Sect. 3.1.4). An anaglyph of this figure is available in Appendix A. c): NAC image showing another close-up of the Ash region at higher resolution. d): NAC image showing an exposed region in Ash below the dusty coating that shows terracing and layering. The box outlines the same crater displayed in b) for orientation.