It looks something like the Golden Gateway, sorry
.
From calisphere - University of California
http://images.google.com/imgres?imgu...NW:en%26sa%3DN
Model of proposed Golden Gateway CA, 1964
The towers were eliminated north of Jackson St to preserve views. Also note the proposed Alcoa Building and Embarcadero Center to the right. The Embarcadero Center part of the model reminds me of the early (before 2005) Transbay area concept renderings and models. It is very different from what was eventually designed and built.