Mid Century Heavy Coffee Cup Mug Vintage

While watching many a black and white movies from the 40s or 50s, there's always someone smoking a cigarette and enjoying a cup of Joe in one of these vintage cups. These cups were made to last, maybe from a diner. Very heavy, but probably not microwave safe as they were made before microwaves were made. it measures about 4" tall and 3.25" from outside rim to outside rim. No cracks or chips. Really a fun cup to have! bl