There are three methods to purchase silver at the Perth mint....

There are three methods to purchase silver at the Perth mint.

1.Allocated .....cost yearly for depositary box
2.Non Allocated.... no cost for depositary box - shared with other people's gold and silver
3.Physical delivery.....bulky, hardly hide at home also delivery cost

If you buy large quanntity, which option you choose and why?
Your advice is highly valued.