 As an historical record , the Anthony Roll is in many ways unique . It is the only known fully illustrated list of a Tudor period royal navy , though the pictures should not be seen as exact depictions drawn from real life . For example , the lists of guns of the individual ships , which are considered to be an accurate record produced by a senior state official , are only approximately matched to the paintings . The rigging is only roughly accurate , and has been described by Margaret Rule , archaeological project leader of the Mary Rose excavations , as " a confusing assemblage of shrouds , ratlines and stays " . Many details are present , but others are missing , such as the chain @-@ wales ( the horizontal platforms extending from the sides ) to which the shrouds ( the parallel ropes that stabilized the masts ) were attached to keep them clear of the hull . 
