I cannot find the stamp on the back. It is smaller, however I have been dealing with this distributor for almost 15yrs, they are reputable and well known. I know and Trust The company. fully!
Further, if anyone has any question on this as being sterling silver, take it to a jeweler, have it tested and if it is not what I say it is or what they represent it as, I will be happy to return credits fully. Some items do not get stamped in production, some of these did get stamped, some do not.