Vintage 60's Marshall Field Baby Girl Sweater Dress White Belgium 6-12 M EUC

There is no size so please see measurements. This acrylic sweater dress is lightweight and super soft. It looks like it has never been worn. Has four button closure in back. from back of neck to hem is 13", armpit to armpit is 12", neck opening is 5", from under arm to hem is 11". Includes box and tissue paper. PLEASE GO BY MEASUREMENTS AND NOT MY GUESS ON SIZE 6-12 M