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Correct Example [#3302]

of
515 Uncrossable wall (ISSprOM 2019-2)

ISSprOM 515

  • Sample for ISSprOM 515 Uncrossable wall
    These three structures below canopy are significant as barriers. The stairway is leading nowhere. It is thus a solution draw all three as ISSprOM 515 Uncrossable wall in at least the minimum lenght of 1mm/4 m IRL. Location: Campus Sursee, Switzerland Photo: Andreas Kyburz, Maps: Martin Lerjen (CC BY-SA 4.0)