5¢ Luis Munoz Marin
Great Americans Series
Issue Date: February 18, 1990
City: San Juan, Puerto Rico
Printed By: Bureau of Engraving and Printing
Printing Method: Engraved
Luis Munoz Marin was elected to the Puerto Rico Senate and later served as governor for four terms. He was instrumental in gaining Puerto Rico's independence from the U.S. and was effective in changing the island's status with his improvement programs. Marin is pictured on the 5¢ Great Americans stamp.
Issued between 1980 and 1999, the Great Americans definitive series features 63 designs, making it the larges set of face different Regular Issue stamps issued in the 20th century. One stamp honors a couple (Lila and Dewitt Wallace) while the remaining 62 commemorate individuals.
The series is characterized by a standard definitive size, simple design and monochromatic colors. The Bureau of Engraving and Printing produced most of the stamps, but some were printed by private firms. Several stamps saw multiple printings. The result is many different varieties, with tagging being the key to understanding them.