At the lower left of the diagram is a hexagonal disk, viewed obliquely. At the left most corner there is an 'H' above the disk and an 'O' below it. Moving clockwise around the hexagon to the next corner we find a 'C H subscript 2 O H' above the disk and an 'H' below it. At the next corner there is simply an 'O'. At the next corner, which is at the right hand edge of the hexagon, there is an 'O' above the disk and an 'H' below it. At the next corner an 'H' above the disk and an 'O H' below it. And at the last corner of the hexagon there is an 'O H' above the disk and an 'H' below it.

There is a second identical hexagonal disk positioned so that the left most corner of the second disk is directly above the right most corner of the first disk. The 'O' that was above the right most corner of the first disk is also the 'O' that is below the left most corner of the second disk.

Similarly, a third hexagonal disk is position above and to the right of the second disk.

5 Preserving the Mary Rose