How Do Numismatics Magazines Or Catalog Have Many Images.

Numista requests and receives permission from the copyright holders to use their images. In my opinion it is one of the strengths of Numista: they can have the best images in the world for many coin types because they have received permission from many of the national museums, the auctions houses with best reputations, etc. (of course this is not always exploited to the best possible effect because of the original crowd-sourced approach).