06.22.2018 - By San Francisco Chronicle
Helen Goldsmith and husband Paul Heller noticed a plaque touting a time capsule buried here at Sansome and Embarcadero. This little plaque was on the sidewalk next to 1500 Sansome St. promising a surprise below. Helen Goldsmith and Paul Heller noticed it several years ago on their regular walks around their neighborhood. It was a tiny golden triangle laid into the concrete at Sansome Street and the Embarcadero reading, “Roundhouse Plaza/Time Capsule Below/Brass Pin/To Be Opened June 30, 2018.