make sure you use lard oil to preserve the hairs,I use a empty candy cardboard box with aluminum foil on the bottom and soak the brushes in oil and it is cheaper than a tackle box.
Had this box for 30 years on the shelf. Just don't let it get wet.
I always liked the red transmission oil for my brushes, some may not agree but it has kept them good for over 30 years.make sure you use lard oil to preserve the hairs,