Designation of classes of objects of outstanding historical, archaeologicalor cultural importance

3.  The following classes of objects are designated pursuant to section 2(1) of the Act.

(a) any object (other than a coin), any part of which is base metal, which, when found is one of at least two base metal objects in the same find which are of prehistoric date;

(b) any object, (other than a coin) which is of prehistoric date, and any part of which is gold or silver.