A formal link exchange generally refers to an internet based system that is set up to facilitate these sorts of link exchange. There are some well known link exchange systems on the web that are easily found via a web search.

Lovely, Florentine waste can in the 1960s burnt orange and gold. It's 10-1/2" tall and the top is 10-1/2" diameter. It looks unused to me, however as with all this type decoration, there are some areas of "misplaced" gold. Very small, gold spots where it should be orange. There are also a couple of very, very light streaks of what looks like gold over spray. I believe that's one on the left side of the picture. Made of gold colored plastic. In a circle on the bottom is, "Made in Italy - Trademark" and the original sticker is still there.