This is the world's most expensive piggy bank. The 18-carat gold design ... featuring the Royal Mint's Tower hallmark, will come with certificates of authenticity and an individual issue number.

It has unveiled the world's most expensive piggy bank - an 18-carat gold design costing ... featuring the Royal Mint's Tower hallmark, will come with certificates of authenticity and an individual ...

This is the world's most expensive piggy bank. The 18-carat gold design ... featuring the Royal Mint's Tower hallmark, will come with certificates of authenticity and an individual issue number.