United States 1940~2000 first day stamp / envelope collection single piece for sale

Name of Product: US First Day Seal of 1940~2000 Stamp/Envelope Collection Product desciption: What I want to introduce today is the beautiful "first day cover" from around the United States from 1940 to 2000. Fans who have been philately sent may be familiar with the first day cover, but there should be many people who are unclear. The "First Day Cover" is the first day of the new stamp issue. The full or single stamp of the stamp is placed in the upper right corner of the special envelope, and the envelope of the day post stamp or special commemorative postmark is stamped. The actual delivery by the postal department is called the first day of the seal. The "First Day Cover" is the first day of the stamp issue. It is closely related to stamps. It is designed, printed and distributed by the postal department and philatelic company. It is also made by stamp collectors. The first day covers are usually printed with stamps and textual descriptions to enhance the propaganda role of the stamps. The first day cover is increasingly popular with many stamp collectors all over the world for its artistry, historical materials and fun in the collection process. The "First Day Cover" shared this time, with historical greats, architecture, characters, stories, animals, etc. - with beautiful printing and even hot stamping, it is suitable for collection! #This item is for sale #Please choose the style you like *The design museums are mainly European antiques, old and old objects. After years of baptism, some antiques will inevitably have some historical traces and black spots. Or a small corner, it is inevitable that it is not as clean as a brand new product. But this does not affect the retro beauty of itself. Perfectionism and friends who are accustomed to buying new products, please think twice before placing an order. We also look forward to your becoming the same beauty as we are in love with ancient objects ^^ If you have any questions, please send us a message! Size: length 16.5* width 9cm