We have just purchased some Quality Street chocolates in a tub. I am saying tub as it is plastic. When I was growing up it was a tin. I then thought hang on a moment I have an old chocolate tin I keep all my cake decorating things in, and it is Quality Street. The photos show the difference.
The 2014 plastic tub has 756g net and the tin has 2180g net and this would have been 1988 or 1989. If you feel guilty about getting through a tub of chocolates quickly these days it because its approx 65% smaller than when you were growing up!