Vintage 1920's blue silk and lace dress

1920's blue-gray silk dress with lace accents. This dress is in delicate condition. The slip has severe damage and is ripped in many places (see photos). The over-dress is in better condition with a few tears in the lace at the armpits, some rust stains (see photo for example), and the hem is dirty. It used to have a sash. It's likely from the late '20's and given it's age it is good condition. You could easily replace the slip and wear the over-dress. Size approximate.