The shwastika is a very old symbol and has been linked to christians, buddhists, mayans, etc. Its a worldwide symbol that some view as religous others take to be a sun symbol. Pottery has been found with it on dating back to 2300-2600 B.C, it has also been found on bronze age items. The metal could be tested to give a true date. Interesting item and maybe lucky for the new owner. It would be great to hear of the outcome if the item gets checked out!