Yes if you mount above all conical hat..in any case the French in Tonkin fought for short period the Annamite Imperial Army but, in the majority of cases, their enemies were the “pavillons noirs” that’s to say Chinese bandits in service of various warlords including the Chinese Gvt. And then , as at Lang Song ecc, the very Chinese regulars ..so definitely you can use those minis for Tonkin