Vintage 70’s blouse

Nice vintage piece. One owner. No holes or stains with minimal signs of wear due to age and use. No tags to say the maker, size or material. I think it’s cotton and a size small. Please see the photos and consider them the best description. Thanks Measures approximately 17” total length 18.5” across the front laying flat pit to pit 15” across the waist 17” sleeves from cuff to under pit