Polka dot Vintage Top

Vintage early 50’s button down top in cherry red with white polka dots, faux front pocket, Rose bud shaped buttons (one is missing, but other than that, for the age, it is in great shape). Inside front seam is a little unraveled as pictured. There is no designer or tag or label for laundering instructions. I am placing this as a medium by today’s sizing. Please compare your own measurements with those that are provided as vintage sizing tends to vary from todays. Bust: 17” flat Length: 26”