This is a Homer Laughlin Cobalt Blue vintage pair of salt and pepper shakers. Homer Laughlin produced two different version of cobalt blue, one from 1936-1951, and a newer one from 1986 to the present. I think these are the older Cobalt, the newer ones are much darker blue. Both shakers are in excellent condition with no chips or cracks. The bases are not marked.
Homer Laughlin Fiesta Fiestaware Vintage Cobalt Blue Salt Pepper Shakers