Ca.1990 Kyosho "Concept 30" Folder,8-1/4" x 11" with 6 fold-out pages.There are 4 variations of the Concept 30 helicopter pictured on the first page.The next 2 pages describe in detail the features of the Concept 30 and the back cover has accessories.There is no date,Ca.1990 is my guess. Excellent Condition with lower right corner creased