Doubt that this is a Concorde, the telling detail is the huge cut-outs to the BB shell, something I've only seen before on Italvega frames (specifically the Superlight) and therefore on Torpedo who most likely built those frames. This has some details that are unlike most Italvega or Torpedoes that I've seen, such as the round hole cutouts in the lugs (normal would be a diamond shape), but I'd still lean toward Torpedo and away from Concorde. The short Campy dropouts have portacatena holes in the driveside (you can barely see it) so the most likely age for this frame is late '70s (say 1978-1980)...I'd guess the the 27mm seat tube could indicate an SP seat tube on an otherwise SL frame.
Is there a fork?