The kitschy white letters declaring South San Francisco The Industrial City are celebrating their 100th birthday today, and it turns out you can hike right up to those letters and wish them a happy birthday.
Much like the famed Hollywood letter sign (which also turned 100 years old this year), the sign was an example of an early 20th-century trend known as civic boosterism. Redwood City's similar Climate Best by Government Test sign went up two years later.
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