Oxford Silver Plate Co. Does Anyone Know Of Any Free On-line Appraisal Websites For Antiques?

Does anyone know of any free on-line appraisal websites for antiques? - oxford silver plate co.

My friend in the construction and recently found an age in the attic of a house that he renovated into a photography studio. It is either a butter knife or a dessert, preferably cut with a knife on the cake. It is the company Oxford silver, after the engraving on the back and the Pat.Jan.25.10 registry. I think it is a kind of patent dates. So any help would be appreciated. Thank you.