Hi Carlos, what you have is a mustard condiment piece. It would have been part of a set on a silver stand. The other pieces would have been a pepper shaker (in similar size) and then a round or oval open salt dish. It would date from the late 1800s. See the photo below for an example. The silver stands, of course, would vary in design, as would the willow pattern depending on the maker. Thanks for visiting our site.