The Combined Nomenclature (CN), v1:2018
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=bdccfab4-a71c-4f32-8b96-d3d9ed56013c