Simple fine china inhaler "Hockin's acme inhaler". ("Acme“ means "Epitome“ or "Apex“). From Great Britain.
The inscription is: "Directions remove the cover, half fill the vessel with the hot infusion. Replace cover and the inhaler is ready for use. Or a sponge saturated with the inhalant may be replaced in the glass tube behind the vessel being first half filled with boiling water."