File:Albert S. Samuels streetclockSFO.agr.jpg taken same day with same camera for validation of camera time, about 15 min slow if Samuelsclock was accurate.)
File:Albert S. Samuels streetclockSFO.agr.jpg taken same day with same camera for validation of camera time, about 15 min slow if Samuelsclock was accurate.
File:Albert S. Samuels streetclockSFO.agr.jpg taken same day with same camera for validation of camera time, about 15 min slow if Samuelsclock was accurate.