It may be difficult to match glasses. There is also a reason Sanson is out of business. I would verify the arms are correct. Several heraldic websites offer etched glasses which may not match. Do you still have the paperwork on the arms from Sanson. They sent my father the arms of a family that sounded close to ours but not close enough and different spelling and clearly no relation. Put our name on the arms and passed it off as arms of our last name! I can help look yours up if possible!