My guess is that its an early 60s frame. Check out the hole in the rear dro pout, but no holes in the headtube-seatcluster lugs, drainhole in bb. Fro m what I can see, it appears that this frame didnt come with a stinking bad ge ; ) as some just came with a decal on the headtube.
US of A
From: Bob Freitas <firstname.lastname@example.org> Subject: [CR]re:Matteos Cinelli on Ebay To: "CLASSIC RENDEZVOUS" <email@example.com> Date: Wednesday, December 24, 2008, 9:51 AM
Charles asked about this bike as far as dat ing. My bike which I date to 1963 or so is quite similar. Front derailleur should be the earlier with cable stop and the rear derailleur is later but other than that his dating looks accurate. The DT decals look strange to me but it looks like a repaint anyway. Head badges are hard to come by for th ese.(And I need one by the way) So summary would be frame is correctly described and wrong parts can be cured via $.
RAINY in MILL VALLEY, CA USA