Vintage Sewing Pattern KWIK SEW 1887 Men's Shorts Pants S-XL

This is a vintage previously used sewing pattern made by Kwik Sew. The item number is 1887 and it has a pattern for men's shorts and pants. The sizes are S, M, L, and XL. The pattern has been partially cut and it appears that someone has copied the onto plastic sheets. I don't understand this, but I've never sewn an inch. It was released by Kwik Sew in 1989. pat3-071726