Challenge has finished
Black and white square pictures with locks used to raise and lower boats as main subject.
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Thursday, 13th October, 2011 (GMT)
Thursday, 20th October, 2011 – Wednesday, 26th October, 2011 (GMT)
Thursday, 27th October, 2011 – Wednesday, 2nd November, 2011 (GMT)
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Maximum number of entries per user:
Maximum number of entries in challenge:
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