Retrostage button up blouse in abstract/geometric pattern with pussybow

I was planning to enter my 1970s secretary era with this shirt but then it arrived and was too small 😭 Super cute patterned blouse with cuffs, buttons down the front and a tie at the neck. Neckline is mock neck. In BNWT condition. I’ve included the size info from their site since the shirt does not have an interior size or fabric comp label. This is a size large.