[maple_leaf_eh]

An artillery piece wouldn't seem like the dangerous item, it is just steel with the ammunition. Most artillery projectiles are explosive in one form or another. On the other hand, many tank shells can be dumb flying objects, except for maybe a tracer. To have some 'by the book' police official tell you what you can and cannot own, seems an unreasonable intrusion on your study of history. I think you really need to get a copy of his book and look for the exceptions to the rule.

Yesteday I received a CD with copies of all firearms-related correspondence with my name on it held by the Royal Canadian Mounted Police. There is a standard application form, and if you use words the cops recognize, they are duty bound to provide the information. Certainly there is a similar regulation in Australia. Just start asking. If you don't make enemies, at least you will learn how your government works.