Vintage clothes are usually made of fabric that is sensitive to washing machines..
brush first outside on the line then
you can handwash in 1/2 cup of baking soda..
or you can simply hang the garmet in a plastic bag..
throw a nylon sock with 1 cup
of baking soda inside and tied..
to the bottom of the bag and let sit in a cedar closet,
cedar chest or cedar box or simply add a cedar shake to the bottom of the bag after two days of it being with the soda..
do not let the cedar touch the clothing
just kindling in the bottom of the bag..
Pls remember to brush the garmet first..
outside to remove the mildew/must or fungai