Sheffield Rose English Pewter (Rose stamp) Don’t trust the people around you while you dine and drink?!? Bring this cup and you can still see everyone through the bottom of the glass - won’t get surprised! Super sports fan? Don’t want to miss a second of the game even when you’re drinking some drinks? Use this cup and look through the bottom and watch tv while you chug a full mug oh beeeeer Leaks a little out bottom, I was going to silicone is closed but thought you might do a better job