A collection of bullion coins

Last week I met my uncle for the first time. I had never met him before although I heard a lot about him and his passions and hobbies. I found out that he liked traveling and sailing and when it was only possible, he always brought some souvenirs from his travels. We had to drive three hours to get to his home. A he opened the door, he immediately seemed a nice man, very friendly but very lonely. The only thing he had is his collection of gold bullion, which makes him quite rich I guess. Of course, not all bullion coins are valuable but at least they are beautifully minted, with little ornaments on them. He showed me the whole album of these bullion coins brought from different places in the world. You could find bullion bars from Canada, from Germany and from Switzerland. You know, when someone has such a passion it is easy to make him or her a present and you can be sure he or she would love it. That was what I thought. I decided to look around and find him some nice bullion coins for his next birthday. As far as I know, there are also legal purchase sources on the Internet where you can buy coins without leaving your home. Even if I do not really know how to distinguish a valuable thing from bullion coins which has little value, I think it would really make a good present.