Japanese Rooster and Chicken Salt and Pepper Shakers

I was just trying to organize my parent's basement and came across a bunch of old salt and pepper shakers that used to belong to one of my mom's relatives. Any guesses at prices would be appreciated. I have two sets, the white set have stickers that read "Hand Painted Japan," the colored have stickers that read "Hand Painted Royal Japan." The White set is 4 3/4" (h) x 2 1/8" (w) x 2 1/4" (l) and 3 1/2" (h) x 2" (w) x 1 7/8" (l). The colored set is 4 " (h) x 2" (w) x 2 1/8" (l) and 3" (h) x 1 7/8" (w) x 3 1/2" (l)