I have a nearly identical looking mino denti #574 which was made in 1981, so based on the frame no. (372) I'd guess it's from late 1980 or early 1981. Unusual head tube angle; looks almost vertical. That will make for one very stiff ride. I noticed that the frame doesn't have any tubing manufacturer decals given that it has all the frame builder's decals. I'm not sure what that means if anything. My frame and all other denti's I've seen from that era have tubing manufacturer decals on the seat tube and forks; (my frame has Columbus SLX decals).