This Vintage beer stein charm is sterling silver. The details given to the outside of the mug shows great craftsmanship. The lid opens. The jump ring is marked Beau, Sterling. The base has a scallop edge and has a smooth finish. The measurements are 15mms High (lid closed), 18 mms (lid open) by 11 mms Wide. Excellent condition. This is another beauty for the charm enthusiasts.