This website about the Mary Rose is also very valuable:
http://www.maryrose.org/
Including an online database containing more than 14.000 objects found in the Mary Rose:
http://www.maryrose.org/discover-our...ction/archive/
I wish, to have such perfectly presented material available for other archaeological finds.
What is your idea for the cannonballs? Iron just as a low cost substitute for lead? In this case iron balls could have been used. I guess the other theory is much more plausible.