Simplicity 6427; ©1974; Boys' & Teen-Boys' Pajamas in Two Lengths: The pajama top has front button closing, set-in sleeves and patch pocket. V. 1 & 2 have notched collar. V. 1 & 3 have long sleeves. V. 2 & 4 have shaped neckline have top-stitching trim. The long pants V. 1 & 3 and the short pants V. 2 & 4 with elastic waistline casing have fly front closing with snap fasteners. Same pattern re-issued with ©1977 in different envelope design, and different color from 1975