There's little doubt that that would be OK. The copyright Act says "permanently situated in a public place" and there's no reason to restrict that to mean "permanently bolted to the ground". The legal exception covers all types of 3D works of artistic craftsmanship, including for example small sculptures displayed in a museum case. Such portable works will, by their nature, be moved around from time to time, but if they are part of the permanent exhibits they remain "permanently situated in a public place", namely the public galleries of the museum.
Michael
WereSpielChequers wrote:
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Side note to the copyright/FOP experts; does permanent public display mean it has to stay in the same place and can't be moved even a few yards?
Regards
Jonathan