RARE 1970s artist signed Popowski MCM ATOMIC 8 oversized cards & envelopes For Sale

This set of vintage greeting cards is truly unique and rare. Each card features a bold, atomic design by the artist Popowski, and is signed by the artist. The set includes 8 oversized cards and envelopes, manufactured in the 1970s in the United States. These cards have never been used and are in excellent condition. The size of each card is 8 1/2" x 5 1/2". This is a must-have for collectors of Popowski's work or vintage greeting cards.