SET 8 x 1974 FIRST DAY ISSUE 10 CENT USPS FDC Letters Mingle Souls Art Stamps

This is a set of first day issue USPS stamps from the 1974 series, "Letters Mingle Souls." Kept by a collector who stored them safely in plastic sleeves, these first day covers are in excellent condition. Each one features a classic work of art that shows someone reading or writing a letter, with a short paragraph about the artwork on the back . This was part of a campaign to convince people to write letters more often I am not a stamp collector, so if there is important information that a collector would need, but is not included here, please let me know, and I will be happy to give you that information.