Inverted stamps expected to go for millions – Philadelphia Inquirer
|
Inverted stamps expected to go for millions
Philadelphia Inquirer, PA AP These, of course, aren't just any mistakes: They are the very valuable variety that happens when part of a stamp is printed upside-down. The collection amassed by Pittsburgh stockbroker Robert H. Cunliffe, who died last year at the age of 83, … |
More: continued here