Butterick 4484 vintage sewing pattern, dated 1989.

Men's Vest:

A,B: loose-fitting vest has cut away armhole, welt pockets and back belt. B: front collar. C,D: very loose-fitting, unlined vest has forward shoulder seams, pocket variations with flaps. C: side slits and snap closing. D: collar and lower band.

Size   XS - S - M:

Chest 32 / 34 - 36 / 38 - 40 inches / 81 / 87 - 92 / 99 - 102 cm

Waist  26 / 28 - 30 / 32 - 34 inches / 66 / 71 - 76 / 81 - 87 cm

Pattern pieces for view A have been cut, checked complete. Remaining pieces are uncut. Envelope is in good condition, with a store stamp on the front.

More men's patterns here:

https://allthepreciousthings.com.au/collections/men