The Combined Nomenclature (CN), v1:2019
education or exhibitions, unsuitable for other uses (excl. ground flying trainers of heading 8805, collectors' pieces of heading 9705, antiques of an age
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=f5446a47-febf-4bd1-98b9-8e347fa96472