Thank goodness for the ease of finding information on the web. They began manufacturing them in 1993 and came in a number of models in black and gold. There is a lot of information available if you have a bit of time to to do the research. Go to your search engine and type in what you are looking for and it will bring it up. the brassie.com has a review of the dci irons.

DCI MID irons were released in the early 90s as their “Game Improvement” irons. What’s odd is the green triangle. I don’t recall ever seeing Titleist put a symbol directly underneath their logo. Symbols were always out towards the toe of the iron. Wondering if these irons are from Europe or Asia.