Vintage 1980s Rainbow Hot Air Balloon Seal and Send Stationery Postcard Letters

Vintage 1980s rainbow hot air balloon Seal and Send stationery postcards. Includes 4 cards. You write your letter on the back then fold in thirds, address it, add a stamp and mail it. Super cute to actually use, add to a junk journal or for a collection. Made in USA. Approx 9-1/2" x 5-3/4". Good condition.