Buying and Selling U.S. and worldwide postage stamps for stamp collectors.
U.S.%20%231809%201980%2015%26cent%3B%20Letters%20Shape%20Opinions%20Letter%20Writing%20%20%20Issue%20Date%3A%26nbsp%3BFebruary%2025%2C%201980%20City%3A%26nbsp%3BWashington%2C%20D.C.%20Quantity%3A%26nbsp%3B38%2C689%2C000%20Printed%20By%3A%26nbsp%3BBureau%20of%20Engraving%20and%20Printing%20Printing%20Method%3A%26nbsp%3BPhotogravure%20Perforations%3A%26nbsp%3B11%20Color%3A%26nbsp%3BMulticolored%20%20%20This%20stamp%20belongs%20to%20a%20set%20of%20six%20issued%20to%20commemorate%20National%20Letter%20Writing%20Week%2C%20which%20was%20held%20February%2024%20through%20March%201%2C%201980.%20It%20was%20the%20first%20time%20that%20a%20sheet%20of%20stamps%20with%20three%20sets%20of%20vertical%20pairs%20was%20issued%20by%20the%20United%20States.%20Each%20stamp%20focuses%20attention%20on%20the%20importance%20of%20letter%20writing%2C%20and%20some%20are%20inscribed%20with%20such%20statements%20as%20%26quot%3BLetters%20Preserving%20Memories%26quot%3B%20and%20%26quot%3BLetters%20Shape%20Opinions.%26quot%3B
1809 - 1980 15c Letter Writing: Letters Shape Opinions - Mystic
1805-06 - 1980 15c Letter Writing: Letter's Preserve Memories
Australharmony - Biographical register W (Will-Wiz)
1806 - 1980 15c Letter Writing: P.S. Write Soon, pink - Mystic
National Letter Writing Week Mystic Stamp Discovery Center
Auction133 by David Wood - Issuu
1901-Now Used, United States, Stamps - PicClick UK
1805 - 1980 15c Letter Writing: Letters Preserve Memories - Mystic
Scott #1805 - 1810. Letter Writing.
Scotts #1805-1810 Set of 6 Letter Writing 15 Cent US Postage Stamps- XFNH
F INE J UDAICA - Kestenbaum & Company
1809 - 1980 15c Letter Writing: Letters Shape Opinions - Mystic Stamp Company