Gorgeous Vintage 2-piece, cream/ivory nightgown and robe set, size S

This is an estate sell find. I haven’t washed it. There are a few small spots on the robe that look as if they’d wash off. The gown seems to be spot free and in perfect condition. Such a beautiful set with ribbon trim, looped buttons and embroidered flower detail. The robe also has looped buttons and a tie.