Junior size clothing patterns by Simplicity. Pattern number 9592: Youth Junior Teen (YJT) sizes 9/10 (1qty) and 11/12 (1qty). Pattern number 8515: Junior Petite sizes 7JP(1qty), 11JP(2qty), 13JP(1qty). Pattern sheets have not been verified out of fear of damaging; however, look to be uncut and never used. Circa 1970. Instructional guides included with some of the original packaging saved.