i would hate to give bad advise on these so all i can say is, i took the stamps i had to a stamp and coin dealer here where i live and he told me that only the original stamps had value, but only as stamps. the goldplated replicas were mass produced. thats not to say they aren't collectible, its just that there are so many out there the value is next to nothing. the replicas that do have value are the unusual stamps of people, like Elvis or other mega stars.i had a set that included the wright brothers airplane and the first railroad and he said they were worth whatever gold was in them.