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A broken outline qualifying a feature.
Also known as: Ruined symbol orienteering, Control description ruined
The IOF control description symbol qualifying a built feature as ruined.
Matters because a ruined building may be far less conspicuous than the map suggests, so the qualifier warns of a discrepancy between the map and the ground.
Contexts: Maps
A broken or partial outline drawn in the appearance column beside the feature it qualifies.