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30 November 2007, Critical Mass

Bicyclist approached event down a ramp
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Bicyclist approached event down a ramp

Embarcadero Center, San Francisco   •  (Photo posted Friday 21 December 2007)   •  (Photo taken Friday 30 November 2007)   •  © 2007 Terry Costales Creative Commons Attribution-NonCommercial License #CriticalMass2007_0880T
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Chatted on a cellphone ahead of the event
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Chatted on a cellphone ahead of the event

Justin Herman Plaza, San Francisco, California   •  (Photo posted Friday 21 December 2007)   •  (Photo taken Friday 30 November 2007)   •  © 2007 Bryan Costales Creative Commons Attribution-NonCommercial License #CriticalMass2007_8307B
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Ghost of critical-mass-past made an appearance
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Ghost of critical-mass-past made an appearance

Justin Herman Plaza, San Francisco   •  (Photo posted Friday 21 December 2007)   •  (Photo taken Friday 30 November 2007)   •  © 2007 Bryan Costales Creative Commons Attribution-NonCommercial License #CriticalMass2007_C8308-10B
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