Vintage Nite Aires Feather and Satin Mules

Vintage, very old ‘Nite Airs’ boudoir slippers with real feather embellishments. Black satin with satin covered heel and gold branded lining, they have peep toes and metal heel tips. They’re very delicate, the plastic part of the heel tip has crumbled away and the feathers are very fragile. They are stored in tissue paper in their original box. I think they are from the 1950's/60's era.