Abstract: A tamper-proof coin case is presented. The coin case comprises a unitary assembly having a first substantially planar member which has a first element of an interlocking means disposed circumferentially thereabout, the first planar member being joined to a second substantially planar member having a second element of the interlocking means whose shape is complementary to the first element and which is disposed circumferentially about the second planar member. The unitary assembly has a first interior retention zone shaped such that a coin can be retained within the first interior retention zone, a second interior retention zone shaped such that at least one photograph of the coin can be retained within the second interior retention zone and a third interior retention zone shaped such that a certificate for the coin can be retained within the third interior retention zone.