History and Significance of Puerto Rico Stamp Mi.90

The Puerto Rico stamp Mi.90 is part of a significant edition released during the period when Puerto Rico was under United States governance. This stamp is valued not only for its historical significance but also for its rarity among collectors. The issuance of this stamp reflects the cultural and political changes of the time.

Details and Specifications

The stamp is cataloged under number 90 in the Michel catalog, making it easily identifiable for philatelists. Although the stamp is unused, its condition after being hinged enhances its appeal to collectors seeking unique pieces for their collection.

Tags: Puerto Rico, Mi.90, stamp, philately, collector's edition