Ruffle trim round the neckline
Buttons at the back.
These garments were made before sewn-in "garment care" labels were the norm.
There are no laundry instructions or fabric composition labels.
The material appears to be synthetic -perhaps Celanese?
I would suggest careful hand washing, separately just in case the colour runs.
These garments are unsold shop stock from a drapers' shop which has recently closed.
They have been properly stored, and are in beautiful condition.