The Combined Nomenclature (CN), v1:2024
9023 00 80: Instruments, apparatus and models designed for demonstrational purposes, e.g. in education or exhibitions, unsuitable for other uses (excl.
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=bf7312cf-1d38-4832-a7e1-6d4365ef3fcf