Women’s Vintage Union Made White and Blue Floral Prairie Dress Size Small?

This dress does have some minor staining here and there and unfortunately the zipper needs to be repaired. I do not see any holes or other flaws otherwise. It does not have a size tag but my guess would be a small or xs. Shoulders:16” Bust:32” Sleeve Length:24” Length:56” ————- SL#249 Size: Unknown Condition: Pre-Owned Fair Size: Womens S? Condition: Pre-Owned Fair