1940's Simplicity 4351 Mens Boxer Shorts Pattern Waist 32

Style I and II are made with fly front and reinforced crotch. Style I has an adjustable back opening and Style II has adjustable openings at each side.
Waist Size 32.
Pattern unused and complete.
Unprinted pattern pieces, precut to size.
Envelope is in good condition.
Undated early 1940's.