Simplicity 6003 vintage sewing pattern ©1973.
Teen-Boys and Men's Shirts (Sized for Stretch Knits Only):
The top-stitched shirt V. 1 with short set-in sleeves has front band button closing, collar and button trimmed flapped patch pocket. V. 2 with stand-up collar has long set-in sleeves and left shoulder zipper closing.
Chest 38 - 40 inches / 97 - 102 cm
Pattern is partly cut and checked complete. Envelope has flap removed.
More men's patterns here: