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It is part of the normal visitor route. The Library-Museum presents material connected with the history of the Opera; it is not simply a reading room that ordinary visitors cannot enter.
Opera-history person here, not just interiors. Is the Library-Museum part of the normal self-guided route, or does it need a separate library/museum ticket? And is it actually display material, not just a reading room?
It is part of the normal visitor route. The Library-Museum presents material connected with the history of the Opera; it is not simply a reading room that ordinary visitors cannot enter.
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