Hi there, My daughter has been fundraising for a school trip and has been given a pile of stuff to sell, we've come accross a sugar bowl and creamer which looks to be sterling silver (needs a good clean) the bowl has the Walker & Hall stamp on the bottom. It doesn't really look that old, but I can't find out much about it, all I know is that NZ W&H opened in at the turn of last century, and they only make jewelery now. We want to know how much to sell it for and where. (bit of a novice here, can anyone help?