Simplicity 9125 vintage sewing pattern, dated 1979.

Men's Pajamas:

The pajama top with front button closing, has long set-in sleeves, patch pockets, buttons and buttonholes or decorative snap fasteners and top-stitching trim. V. 1 has shirt type collar. V. 1 & 2 have long sleeves. V. 2 & 3 have "V" shaped neckline. V. 3 has short set-in sleeves. The long pants, V. 1 & 2 and short pants V. 3 with front fly opening have casing and drawstring. 

Size MEDIUM:

Chest 38 - 40 inches / 97 - 102 cm

Pattern is cut and checked complete, cut to long pants length. Envelope is in good vintage condition, with light shelf wear.

More men's patterns here:

https://allthepreciousthings.com/collections/men