Early 60’s. Great 4 record boxed Reader’s Digest set that appears unused with original paperwork, order forms, etc. Each tune is explained on the heavy gauge inner sleeve. We always hesitate to use the word Mint with used records but these are about as close as you get and box is equally good. Great party set with Sambas, Bossa Novas, Mariachi and Marimba music, Cha-Chas, Mambos and much more.