1938: the first Pepsi can.
Which is the uglier design? The current Pepsi can, with the new logo/ad campaign baldly usurped from the current commie prez trying to pull the country out of an economic depression? Or the first Pepsi WD-40ish can, launched as another commie prez pulled the country out of another economic depression? Note the old can still had a twist off bottle cap. Also note that 12 ounces was "2 full glasses." Compare to today's 256 oz. Big Gulp America. (old can via) Previous Pepsi vintage ads. Previous Pepsi advertising missteps.