Revision history of "File:Composite image of tunnel systems.jpg"

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  • (cur | prev) 06:21, 23 June 2008S.pilkington (talk | contribs). . (296 bytes) (+296). . (composite image of tunnel systems, red circles indicating known collapses, blue circle indicating suspected collapse. Cityscape taken from Google Earth, tunnel layout taken from engineers blueprints (sourced from Auckland City Archives), composition const)