Condition: First Day Issue Cachets. Look below for list of what is included
6 USPS First Day Issue 1983-88 American Inventors and Antarctic Explorers
#2055- 1983 20c American Inventors: Charles Steinmetz, Electrical
#2056- 1983 20c American Inventors: Edwin Armstrong, Frequency Modulation
#2057- 1983 20c American Inventors: Nikola Telsa, Induction Motor
#2058- 1983 20c American Inventors: Philo T. Farnsworth, First TV Camera
#2386- 1988 25c Antarctic Explorers: Nathaniel Palmer
#2387- 1988 25c Antarctic Explorers: Lt. Charles Wilkes
#2388- 1988 25c Antarctic Explorers: Richard E. Byrd
#2389- 1988 25c Antarctic Explorers: Lincoln Ellsworth
Total Stamps: 8