The fascinating aspect of this unique set of Paraguay overstrikes is the fact that the dies used were unfinished pattern dies which had incomplete dates and that these four patterns were struck over struck gold coins. These gold coins were from Paraguay, Chile and Argentina and are on different denominations with different dates. Several of the gold coins that were overstruck are either rare dates or rare types and were in spectacular condition when they were hand selected. There is no doubt that this was a presentation set that was struck in the Mint and preserved to this day in mint state condition. This set is one of the most historic, dramatic and unusual numismatic rarities ever struck by an official Mint.