From the Rauler website: " Created at the end of '70 by Raul and Reclus Gozzi Bros., the first one known for its specialization in pantography and elettrophoresis and the second specialized in autogenous welding in the specific field of pipages in thin extra special steel, the firm has then specialized in the bicycles chassis assemblage for sport and race use, with RAULER mark."

Thanks to Mark P, we think this may be an 83 or 84 frame. The stamped '89' on the rear dropout plus on the steering tube may mean something else other than year built (??).