The masks were popular among European collectors during the 1920s and 1930s.

Among contemporary collectors the same can be said for photographs.

Only a few people did this, therefore, making the game extremely rare among collectors.

It is famous among collectors, and not only for that reason.

These souvenirs are popular among both the public and collectors.

Of the group, two are already generating much talk among collectors.

In recent years the entire show was made available among collectors.

Today those tapes are traded among collectors of his work.

Because so few were ever produced, it is considered highly valuable among collectors.

Long a favorite among collectors, they do well in captivity, living for up to 25 years or more.