OptionalconditionThis can be used e.g. to indicate a perforation which is torn out or in any other way damaged.
OptionaldepictionIIIF region pointing to a depiction of this feature in the scan.
Horizontal span of the feature on the roll.
ReadonlyidA unique identifier for this object.
ReadonlytypeThe type discriminator for this object.
Vertical span of the feature on the roll.
A feature on the roll, e.g. a perforation, a writing, a mark or a patch, defined by its horizontal and vertical position and extent. Each kind of feature is a class of its own, which its type names.