Vintage Mademoiselle Size Small (?) Cream Sweater w/ Purple Leaf Pattern

This is a gently used, pretty vintage sweater from Mademoiselle. It has a lovely neckline with just a little pleating at the shoulders. It's in nice condition but does have one discolored spot on the back of one sleeve (see last pic). It doesn't have a size tag but I'm thinking it's probably a small. I measure the chest as 32-1/2" and length from back of neck to bottom is 20-1/2". Thanks for looking!