Simplicity 5869 vintage sewing pattern, dated 1985.

Child's Pants or Shorts, Shirt and Unlined Jacket:

Pants V. 1 or 3 and shorts V. 2 have yoke and pockets, front waistband and back elastic waistline casing. Top-stitched shirt V. 1 and 2 with front button closing has collar, short set-in sleeves and pocket. Top-stitched jacket V. 3 with front band button closing has forward shoulder seams, stand-up collar, long set-in sleeves, kangaroo pocket and elastic casings at sleeve and lower edges.

TWO copies available, choose size from drop-down

Size 3:
Chest 22 inches
Waist 20 1/2 inches

Pattern is UNCUT, still factory folded. Envelope is in very good condition.

Size 4:
Chest 23 inches
Waist 21 inches

Pattern is UNCUT, still factory folded. Envelope is in very good condition, store stamp on the front..

More boys patterns here:

http://allthepreciousthings.com/collections/baby-and-children