Blue Satin Pillows - 60s?

I picked up these two pillows at Goodwill yesterday. i think they're really great for decor along with Italian/German/Scandinavian pottery from the period. they have feather stuffing now, but i have to replace it w/ some other stuffing because i'm very allergic to feathers. they're in great condition. how should i wash them though? the feathers are in another bag i can remove to wash them.